Home / 87,864.72-131,741.72-74,542.38

Finding the Fourth Proportional to 87,864.72, 131,741.72 and 74,542.38

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Solution

The fourth proportional to 87,864.72, 131,741.72 and 74,542.38 is: 111,766.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,864.72 : 131,741.72 = 74,542.38 : x
  2. Step 2: Convert to fraction form
    87,864.72/131,741.72 = 74,542.38/x
  3. Step 3: Cross multiply
    87,864.72x = 131,741.72 × 74,542.38
  4. Step 4: Simplify right side
    87,864.72x = 9,820,340,557.23
  5. Step 5: Solve for x
    x = 9,820,340,557.23/87,864.72
  6. Step 6: Final answer
    x = 111,766.59

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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.