Home / 87,424.34-131,104.32-31,249.26

Finding the Fourth Proportional to 87,424.34, 131,104.32 and 31,249.26

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Solution

The fourth proportional to 87,424.34, 131,104.32 and 31,249.26 is: 46,862.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,424.34 : 131,104.32 = 31,249.26 : x
  2. Step 2: Convert to fraction form
    87,424.34/131,104.32 = 31,249.26/x
  3. Step 3: Cross multiply
    87,424.34x = 131,104.32 × 31,249.26
  4. Step 4: Simplify right side
    87,424.34x = 4,096,912,982.80
  5. Step 5: Solve for x
    x = 4,096,912,982.80/87,424.34
  6. Step 6: Final answer
    x = 46,862.38

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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.