Home / 87,538.56-131,279.76-28,359.96

Finding the Fourth Proportional to 87,538.56, 131,279.76 and 28,359.96

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Solution

The fourth proportional to 87,538.56, 131,279.76 and 28,359.96 is: 42,530.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,538.56 : 131,279.76 = 28,359.96 : x
  2. Step 2: Convert to fraction form
    87,538.56/131,279.76 = 28,359.96/x
  3. Step 3: Cross multiply
    87,538.56x = 131,279.76 × 28,359.96
  4. Step 4: Simplify right side
    87,538.56x = 3,723,088,742.41
  5. Step 5: Solve for x
    x = 3,723,088,742.41/87,538.56
  6. Step 6: Final answer
    x = 42,530.84

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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.