Home / 81,841.12-122,791.66-34,468.13

Finding the Fourth Proportional to 81,841.12, 122,791.66 and 34,468.13

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Solution

The fourth proportional to 81,841.12, 122,791.66 and 34,468.13 is: 51,714.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,841.12 : 122,791.66 = 34,468.13 : x
  2. Step 2: Convert to fraction form
    81,841.12/122,791.66 = 34,468.13/x
  3. Step 3: Cross multiply
    81,841.12x = 122,791.66 × 34,468.13
  4. Step 4: Simplify right side
    81,841.12x = 4,232,399,120.60
  5. Step 5: Solve for x
    x = 4,232,399,120.60/81,841.12
  6. Step 6: Final answer
    x = 51,714.83

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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.