Home / 87,738.78-131,593.30-31,567.44

Finding the Fourth Proportional to 87,738.78, 131,593.30 and 31,567.44

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Solution

The fourth proportional to 87,738.78, 131,593.30 and 31,567.44 is: 47,345.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,738.78 : 131,593.30 = 31,567.44 : x
  2. Step 2: Convert to fraction form
    87,738.78/131,593.30 = 31,567.44/x
  3. Step 3: Cross multiply
    87,738.78x = 131,593.30 × 31,567.44
  4. Step 4: Simplify right side
    87,738.78x = 4,154,063,602.15
  5. Step 5: Solve for x
    x = 4,154,063,602.15/87,738.78
  6. Step 6: Final answer
    x = 47,345.81

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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.