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Finding the Fourth Proportional to 87,910, 131,871.10 and 35,319.44

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Solution

The fourth proportional to 87,910, 131,871.10 and 35,319.44 is: 52,981.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,910 : 131,871.10 = 35,319.44 : x
  2. Step 2: Convert to fraction form
    87,910/131,871.10 = 35,319.44/x
  3. Step 3: Cross multiply
    87,910x = 131,871.10 × 35,319.44
  4. Step 4: Simplify right side
    87,910x = 4,657,613,404.18
  5. Step 5: Solve for x
    x = 4,657,613,404.18/87,910
  6. Step 6: Final answer
    x = 52,981.61

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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.