Home / 87,521.38-131,249.67-31,346.02

Finding the Fourth Proportional to 87,521.38, 131,249.67 and 31,346.02

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Solution

The fourth proportional to 87,521.38, 131,249.67 and 31,346.02 is: 47,007.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,521.38 : 131,249.67 = 31,346.02 : x
  2. Step 2: Convert to fraction form
    87,521.38/131,249.67 = 31,346.02/x
  3. Step 3: Cross multiply
    87,521.38x = 131,249.67 × 31,346.02
  4. Step 4: Simplify right side
    87,521.38x = 4,114,154,780.81
  5. Step 5: Solve for x
    x = 4,114,154,780.81/87,521.38
  6. Step 6: Final answer
    x = 47,007.43

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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.