Home / 87,855.55-131,791.42-28,691.53

Finding the Fourth Proportional to 87,855.55, 131,791.42 and 28,691.53

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Solution

The fourth proportional to 87,855.55, 131,791.42 and 28,691.53 is: 43,039.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,855.55 : 131,791.42 = 28,691.53 : x
  2. Step 2: Convert to fraction form
    87,855.55/131,791.42 = 28,691.53/x
  3. Step 3: Cross multiply
    87,855.55x = 131,791.42 × 28,691.53
  4. Step 4: Simplify right side
    87,855.55x = 3,781,296,678.26
  5. Step 5: Solve for x
    x = 3,781,296,678.26/87,855.55
  6. Step 6: Final answer
    x = 43,039.93

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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.