Home / 252,781.25-379,044.86-84,242.52

Finding the Fourth Proportional to 252,781.25, 379,044.86 and 84,242.52

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Solution

The fourth proportional to 252,781.25, 379,044.86 and 84,242.52 is: 126,321.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,781.25 : 379,044.86 = 84,242.52 : x
  2. Step 2: Convert to fraction form
    252,781.25/379,044.86 = 84,242.52/x
  3. Step 3: Cross multiply
    252,781.25x = 379,044.86 × 84,242.52
  4. Step 4: Simplify right side
    252,781.25x = 31,931,693,778.23
  5. Step 5: Solve for x
    x = 31,931,693,778.23/252,781.25
  6. Step 6: Final answer
    x = 126,321.45

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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.