Home / 84,132.46-126,164.13-31,514.86

Finding the Fourth Proportional to 84,132.46, 126,164.13 and 31,514.86

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Solution

The fourth proportional to 84,132.46, 126,164.13 and 31,514.86 is: 47,259.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,132.46 : 126,164.13 = 31,514.86 : x
  2. Step 2: Convert to fraction form
    84,132.46/126,164.13 = 31,514.86/x
  3. Step 3: Cross multiply
    84,132.46x = 126,164.13 × 31,514.86
  4. Step 4: Simplify right side
    84,132.46x = 3,976,044,893.97
  5. Step 5: Solve for x
    x = 3,976,044,893.97/84,132.46
  6. Step 6: Final answer
    x = 47,259.34

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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.