Home / 87,902.39-131,839.01-31,731.73

Finding the Fourth Proportional to 87,902.39, 131,839.01 and 31,731.73

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Solution

The fourth proportional to 87,902.39, 131,839.01 and 31,731.73 is: 47,592.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,902.39 : 131,839.01 = 31,731.73 : x
  2. Step 2: Convert to fraction form
    87,902.39/131,839.01 = 31,731.73/x
  3. Step 3: Cross multiply
    87,902.39x = 131,839.01 × 31,731.73
  4. Step 4: Simplify right side
    87,902.39x = 4,183,479,050.93
  5. Step 5: Solve for x
    x = 4,183,479,050.93/87,902.39
  6. Step 6: Final answer
    x = 47,592.32

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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.