Answer:
51.49%
Step-by-step explanation:
Calculation to determine the maximum debt to capital ratio (measured as debt/total common equity) the firm can use
First step is calculate the Interest Expense
Using this formula
Times Interest earned ratio = Earning Before Interest and Tax / Interest Expense
Let plug in the formula
4.0 = ( Sales - operating costs ) / Interest Expense
4.0 = ( $450,000 - $355,000 ) / Interest Expense
4.0 = $95,000 / Interest Expense
Interest Expense = $95,000 / 4.0
Interest Expense = $23,750
Second step is to calculate the Total Debt
Interest Expense = Total Debt * Interest on Debt
$23,750 = Total Debt *7.50%
Total Debt = $23,750 / 7.50%
Total Debt = $316,667
Now let determine the Debt ratio
Debt ratio = Total Debt / Total Assets
Debt ratio = $316,667 / 615,000
Debt ratio = 51.49%
Therefore the maximum debt to capital ratio (measured as debt/total common equity) the firm can use is 51.49%