Finding the Fourth Proportional to 91,948.29, 126,945.26 and 72,904.99
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Solution
The fourth proportional to 91,948.29, 126,945.26 and 72,904.99 is: 100,653.78
Step by Step Solution
- Step 1: Write the proportion equation
91,948.29 : 126,945.26 = 72,904.99 : x - Step 2: Convert to fraction form
91,948.29/126,945.26 = 72,904.99/x - Step 3: Cross multiply
91,948.29x = 126,945.26 × 72,904.99 - Step 4: Simplify right side
91,948.29x = 9,254,942,910.85 - Step 5: Solve for x
x = 9,254,942,910.85/91,948.29 - Step 6: Final answer
x = 100,653.78
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.