Home / 87,335.80-131,031.38-31,174.66

Finding the Fourth Proportional to 87,335.80, 131,031.38 and 31,174.66

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Solution

The fourth proportional to 87,335.80, 131,031.38 and 31,174.66 is: 46,771.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,335.80 : 131,031.38 = 31,174.66 : x
  2. Step 2: Convert to fraction form
    87,335.80/131,031.38 = 31,174.66/x
  3. Step 3: Cross multiply
    87,335.80x = 131,031.38 × 31,174.66
  4. Step 4: Simplify right side
    87,335.80x = 4,084,858,720.83
  5. Step 5: Solve for x
    x = 4,084,858,720.83/87,335.80
  6. Step 6: Final answer
    x = 46,771.87

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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.