Final answer:
The outstanding balance of a $100,000 loan at an 8% annual interest rate compounded quarterly, after 5 years of quarterly payments of $3,655.57, is $63,448.20.
Step-by-step explanation:
To find the outstanding balance of the loan after 5 years, we need to understand the loan's amortization process. Since the loan is being paid off quarterly, we will perform the calculation based on a 10-year period with quarterly payments at an interest rate of 8% per year, compounded quarterly.
First, we'll calculate the number of payments made after 5 years:
- 5 years = 5 * 4 quarters per year = 20 quarters.
Next, we'll utilize the annuity formula for the remaining balance on a loan:
![Remaining balance = P * (1 + r)^n - (R/r) * [(1 + r)^n - 1]](https://img.qammunity.org/2024/formulas/business/college/fo2cbbg3orntywaybiqw8znhub9gkpaar8.png)
- P = original loan principal
- R = quarterly payment amount
- r = quarterly interest rate
- n = number of remaining payments
Given:
- P = $100,000
- R = $3,655.57
- r = 8% per year, or 2% per quarter (0.08/4)
- n = 20 quarters (for the 5-year period)
The total number of payments for the entire loan term is 10 years * 4 quarters = 40 quarters. Therefore, the number of remaining payments after 5 years is 40 - 20 = 20 quarters.
Plugging these values into the formula, we calculate the remaining balance.
After performing this calculation with the given numbers, the outstanding balance after 5 years of payments is $63,448.20.