Finding the Fourth Proportional to 96,489.28, 133,155.12 and 53,471.52
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Solution
The fourth proportional to 96,489.28, 133,155.12 and 53,471.52 is: 73,790.65
Step by Step Solution
- Step 1: Write the proportion equation
96,489.28 : 133,155.12 = 53,471.52 : x - Step 2: Convert to fraction form
96,489.28/133,155.12 = 53,471.52/x - Step 3: Cross multiply
96,489.28x = 133,155.12 × 53,471.52 - Step 4: Simplify right side
96,489.28x = 7,120,006,662.18 - Step 5: Solve for x
x = 7,120,006,662.18/96,489.28 - Step 6: Final answer
x = 73,790.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.