Home / 87,901.39-131,837.50-31,730.73

Finding the Fourth Proportional to 87,901.39, 131,837.50 and 31,730.73

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Solution

The fourth proportional to 87,901.39, 131,837.50 and 31,730.73 is: 47,590.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,901.39 : 131,837.50 = 31,730.73 : x
  2. Step 2: Convert to fraction form
    87,901.39/131,837.50 = 31,730.73/x
  3. Step 3: Cross multiply
    87,901.39x = 131,837.50 × 31,730.73
  4. Step 4: Simplify right side
    87,901.39x = 4,183,300,116.38
  5. Step 5: Solve for x
    x = 4,183,300,116.38/87,901.39
  6. Step 6: Final answer
    x = 47,590.83

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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.