Home / 84,167.74-126,207.24-28,001.92

Finding the Fourth Proportional to 84,167.74, 126,207.24 and 28,001.92

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Solution

The fourth proportional to 84,167.74, 126,207.24 and 28,001.92 is: 41,988.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,167.74 : 126,207.24 = 28,001.92 : x
  2. Step 2: Convert to fraction form
    84,167.74/126,207.24 = 28,001.92/x
  3. Step 3: Cross multiply
    84,167.74x = 126,207.24 × 28,001.92
  4. Step 4: Simplify right side
    84,167.74x = 3,534,045,037.90
  5. Step 5: Solve for x
    x = 3,534,045,037.90/84,167.74
  6. Step 6: Final answer
    x = 41,988.12

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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.