Home / 87,869.56-131,777.08-31,702.37

Finding the Fourth Proportional to 87,869.56, 131,777.08 and 31,702.37

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Solution

The fourth proportional to 87,869.56, 131,777.08 and 31,702.37 is: 47,543.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,869.56 : 131,777.08 = 31,702.37 : x
  2. Step 2: Convert to fraction form
    87,869.56/131,777.08 = 31,702.37/x
  3. Step 3: Cross multiply
    87,869.56x = 131,777.08 × 31,702.37
  4. Step 4: Simplify right side
    87,869.56x = 4,177,644,930.28
  5. Step 5: Solve for x
    x = 4,177,644,930.28/87,869.56
  6. Step 6: Final answer
    x = 47,543.71

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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.