Home / 87,542.93-131,310.03-31,382.12

Finding the Fourth Proportional to 87,542.93, 131,310.03 and 31,382.12

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Solution

The fourth proportional to 87,542.93, 131,310.03 and 31,382.12 is: 47,071.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,542.93 : 131,310.03 = 31,382.12 : x
  2. Step 2: Convert to fraction form
    87,542.93/131,310.03 = 31,382.12/x
  3. Step 3: Cross multiply
    87,542.93x = 131,310.03 × 31,382.12
  4. Step 4: Simplify right side
    87,542.93x = 4,120,787,118.66
  5. Step 5: Solve for x
    x = 4,120,787,118.66/87,542.93
  6. Step 6: Final answer
    x = 47,071.62

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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.