Finding the Fourth Proportional to 69,432.78, 104,149.17 and 19,517.92
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Solution
The fourth proportional to 69,432.78, 104,149.17 and 19,517.92 is: 29,276.88
Step by Step Solution
- Step 1: Write the proportion equation
69,432.78 : 104,149.17 = 19,517.92 : x - Step 2: Convert to fraction form
69,432.78/104,149.17 = 19,517.92/x - Step 3: Cross multiply
69,432.78x = 104,149.17 × 19,517.92 - Step 4: Simplify right side
69,432.78x = 2,032,775,168.13 - Step 5: Solve for x
x = 2,032,775,168.13/69,432.78 - Step 6: Final answer
x = 29,276.88
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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.