Finding the Fourth Proportional to 71,170.38, 106,753.86 and 23,138.92
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Solution
The fourth proportional to 71,170.38, 106,753.86 and 23,138.92 is: 34,707.82
Step by Step Solution
- Step 1: Write the proportion equation
71,170.38 : 106,753.86 = 23,138.92 : x - Step 2: Convert to fraction form
71,170.38/106,753.86 = 23,138.92/x - Step 3: Cross multiply
71,170.38x = 106,753.86 × 23,138.92 - Step 4: Simplify right side
71,170.38x = 2,470,169,026.23 - Step 5: Solve for x
x = 2,470,169,026.23/71,170.38 - Step 6: Final answer
x = 34,707.82
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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.