Home / 87,854.11-131,810.33-28,691.71

Finding the Fourth Proportional to 87,854.11, 131,810.33 and 28,691.71

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Solution

The fourth proportional to 87,854.11, 131,810.33 and 28,691.71 is: 43,047.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,854.11 : 131,810.33 = 28,691.71 : x
  2. Step 2: Convert to fraction form
    87,854.11/131,810.33 = 28,691.71/x
  3. Step 3: Cross multiply
    87,854.11x = 131,810.33 × 28,691.71
  4. Step 4: Simplify right side
    87,854.11x = 3,781,863,763.36
  5. Step 5: Solve for x
    x = 3,781,863,763.36/87,854.11
  6. Step 6: Final answer
    x = 43,047.09

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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.