Finding the Fourth Proportional to 70,876.18, 106,314.42 and 66,545.92
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Solution
The fourth proportional to 70,876.18, 106,314.42 and 66,545.92 is: 99,819.02
Step by Step Solution
- Step 1: Write the proportion equation
70,876.18 : 106,314.42 = 66,545.92 : x - Step 2: Convert to fraction form
70,876.18/106,314.42 = 66,545.92/x - Step 3: Cross multiply
70,876.18x = 106,314.42 × 66,545.92 - Step 4: Simplify right side
70,876.18x = 7,074,790,888.17 - Step 5: Solve for x
x = 7,074,790,888.17/70,876.18 - Step 6: Final answer
x = 99,819.02
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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.