Finding the Fourth Proportional to 86,529.30, 129,793.95 and 62,909.70
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Solution
The fourth proportional to 86,529.30, 129,793.95 and 62,909.70 is: 94,364.55
Step by Step Solution
- Step 1: Write the proportion equation
86,529.30 : 129,793.95 = 62,909.70 : x - Step 2: Convert to fraction form
86,529.30/129,793.95 = 62,909.70/x - Step 3: Cross multiply
86,529.30x = 129,793.95 × 62,909.70 - Step 4: Simplify right side
86,529.30x = 8,165,298,456.32 - Step 5: Solve for x
x = 8,165,298,456.32/86,529.30 - Step 6: Final answer
x = 94,364.55
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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.