Final answer:
To calculate the required savings for a child's future college education, project the future cost of tuition by applying a 6% annual growth rate and then find the present value using an 8% discount rate. Add up the present value of each year's projected tuition to get the total amount needed.
Step-by-step explanation:
To calculate the amount of money needed for a child's college education 20 years from now, we must first project the future cost of college and then determine the present value of that cost to find out how much should be saved today. The future cost of college can be estimated by applying the historical average increase in tuition and other costs.
Step 1: Projecting the Future Cost of College
The future cost of college is calculated using the formula for compound interest: Future Value = Present Value * (1 + growth rate)^number of years. For each year of college 20 years from now, we will need the following:
- Year 1: $20,000 * (1 + 0.06)^20
- Year 2: $20,000 * (1 + 0.06)^21
- Year 3: $20,000 * (1 + 0.06)^22
- Year 4: $20,000 * (1 + 0.06)^23
After calculating each year's cost, we sum them up to get the total future cost of the education.
Step 2: Calculating the Present Value
Next, we find the present value of the total future cost using the formula: Present Value = Future Value / (1 + discount rate)^number of years. The discount rate is 8% (the interest rate at which the college savings would grow).
By performing these calculations, we can determine the approximate amount that needs to be saved today to cover the projected costs of a four-year college education 20 years from now.