Home / 71,175.25-98,221.13-39,342.61

Finding the Fourth Proportional to 71,175.25, 98,221.13 and 39,342.61

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Solution

The fourth proportional to 71,175.25, 98,221.13 and 39,342.61 is: 54,292.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,175.25 : 98,221.13 = 39,342.61 : x
  2. Step 2: Convert to fraction form
    71,175.25/98,221.13 = 39,342.61/x
  3. Step 3: Cross multiply
    71,175.25x = 98,221.13 × 39,342.61
  4. Step 4: Simplify right side
    71,175.25x = 3,864,275,414.64
  5. Step 5: Solve for x
    x = 3,864,275,414.64/71,175.25
  6. Step 6: Final answer
    x = 54,292.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.