Home / 87,658.38-131,508.23-28,494.09

Finding the Fourth Proportional to 87,658.38, 131,508.23 and 28,494.09

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Solution

The fourth proportional to 87,658.38, 131,508.23 and 28,494.09 is: 42,747.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,658.38 : 131,508.23 = 28,494.09 : x
  2. Step 2: Convert to fraction form
    87,658.38/131,508.23 = 28,494.09/x
  3. Step 3: Cross multiply
    87,658.38x = 131,508.23 × 28,494.09
  4. Step 4: Simplify right side
    87,658.38x = 3,747,207,198.89
  5. Step 5: Solve for x
    x = 3,747,207,198.89/87,658.38
  6. Step 6: Final answer
    x = 42,747.85

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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.