Home / 87,888.57-131,805.91-31,721.82

Finding the Fourth Proportional to 87,888.57, 131,805.91 and 31,721.82

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Solution

The fourth proportional to 87,888.57, 131,805.91 and 31,721.82 is: 47,573.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,888.57 : 131,805.91 = 31,721.82 : x
  2. Step 2: Convert to fraction form
    87,888.57/131,805.91 = 31,721.82/x
  3. Step 3: Cross multiply
    87,888.57x = 131,805.91 × 31,721.82
  4. Step 4: Simplify right side
    87,888.57x = 4,181,123,351.96
  5. Step 5: Solve for x
    x = 4,181,123,351.96/87,888.57
  6. Step 6: Final answer
    x = 47,573.00

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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.