Home / 87,891.40-131,772.30-37,930.60

Finding the Fourth Proportional to 87,891.40, 131,772.30 and 37,930.60

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Solution

The fourth proportional to 87,891.40, 131,772.30 and 37,930.60 is: 56,867.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,891.40 : 131,772.30 = 37,930.60 : x
  2. Step 2: Convert to fraction form
    87,891.40/131,772.30 = 37,930.60/x
  3. Step 3: Cross multiply
    87,891.40x = 131,772.30 × 37,930.60
  4. Step 4: Simplify right side
    87,891.40x = 4,998,202,402.38
  5. Step 5: Solve for x
    x = 4,998,202,402.38/87,891.40
  6. Step 6: Final answer
    x = 56,867.93

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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.