Home / 87,939.27-131,937.15-28,761.48

Finding the Fourth Proportional to 87,939.27, 131,937.15 and 28,761.48

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Solution

The fourth proportional to 87,939.27, 131,937.15 and 28,761.48 is: 43,151.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,939.27 : 131,937.15 = 28,761.48 : x
  2. Step 2: Convert to fraction form
    87,939.27/131,937.15 = 28,761.48/x
  3. Step 3: Cross multiply
    87,939.27x = 131,937.15 × 28,761.48
  4. Step 4: Simplify right side
    87,939.27x = 3,794,707,700.98
  5. Step 5: Solve for x
    x = 3,794,707,700.98/87,939.27
  6. Step 6: Final answer
    x = 43,151.46

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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.