Home / 87,508.33-131,230.29-31,333.21

Finding the Fourth Proportional to 87,508.33, 131,230.29 and 31,333.21

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Solution

The fourth proportional to 87,508.33, 131,230.29 and 31,333.21 is: 46,988.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,508.33 : 131,230.29 = 31,333.21 : x
  2. Step 2: Convert to fraction form
    87,508.33/131,230.29 = 31,333.21/x
  3. Step 3: Cross multiply
    87,508.33x = 131,230.29 × 31,333.21
  4. Step 4: Simplify right side
    87,508.33x = 4,111,865,578.78
  5. Step 5: Solve for x
    x = 4,111,865,578.78/87,508.33
  6. Step 6: Final answer
    x = 46,988.28

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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.