Home / 87,912.06-131,789.13-31,713.18

Finding the Fourth Proportional to 87,912.06, 131,789.13 and 31,713.18

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Solution

The fourth proportional to 87,912.06, 131,789.13 and 31,713.18 is: 47,541.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,912.06 : 131,789.13 = 31,713.18 : x
  2. Step 2: Convert to fraction form
    87,912.06/131,789.13 = 31,713.18/x
  3. Step 3: Cross multiply
    87,912.06x = 131,789.13 × 31,713.18
  4. Step 4: Simplify right side
    87,912.06x = 4,179,452,401.73
  5. Step 5: Solve for x
    x = 4,179,452,401.73/87,912.06
  6. Step 6: Final answer
    x = 47,541.29

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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.