Home / 87,775.33-131,631.85-31,600.35

Finding the Fourth Proportional to 87,775.33, 131,631.85 and 31,600.35

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Solution

The fourth proportional to 87,775.33, 131,631.85 and 31,600.35 is: 47,389.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,775.33 : 131,631.85 = 31,600.35 : x
  2. Step 2: Convert to fraction form
    87,775.33/131,631.85 = 31,600.35/x
  3. Step 3: Cross multiply
    87,775.33x = 131,631.85 × 31,600.35
  4. Step 4: Simplify right side
    87,775.33x = 4,159,612,531.15
  5. Step 5: Solve for x
    x = 4,159,612,531.15/87,775.33
  6. Step 6: Final answer
    x = 47,389.31

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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.