Finding the Fourth Proportional to 87,070.08, 130,777.92 and 74,585.28
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Solution
The fourth proportional to 87,070.08, 130,777.92 and 74,585.28 is: 112,025.94
Step by Step Solution
- Step 1: Write the proportion equation
87,070.08 : 130,777.92 = 74,585.28 : x - Step 2: Convert to fraction form
87,070.08/130,777.92 = 74,585.28/x - Step 3: Cross multiply
87,070.08x = 130,777.92 × 74,585.28 - Step 4: Simplify right side
87,070.08x = 9,754,107,781.02 - Step 5: Solve for x
x = 9,754,107,781.02/87,070.08 - Step 6: Final answer
x = 112,025.94
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.