Home / 87,335.85-131,031.47-31,174.73

Finding the Fourth Proportional to 87,335.85, 131,031.47 and 31,174.73

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Solution

The fourth proportional to 87,335.85, 131,031.47 and 31,174.73 is: 46,771.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,335.85 : 131,031.47 = 31,174.73 : x
  2. Step 2: Convert to fraction form
    87,335.85/131,031.47 = 31,174.73/x
  3. Step 3: Cross multiply
    87,335.85x = 131,031.47 × 31,174.73
  4. Step 4: Simplify right side
    87,335.85x = 4,084,870,121.53
  5. Step 5: Solve for x
    x = 4,084,870,121.53/87,335.85
  6. Step 6: Final answer
    x = 46,771.97

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1.5x scale

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.