Home / 81,626.52-122,395.13-25,451.61

Finding the Fourth Proportional to 81,626.52, 122,395.13 and 25,451.61

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Solution

The fourth proportional to 81,626.52, 122,395.13 and 25,451.61 is: 38,163.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,626.52 : 122,395.13 = 25,451.61 : x
  2. Step 2: Convert to fraction form
    81,626.52/122,395.13 = 25,451.61/x
  3. Step 3: Cross multiply
    81,626.52x = 122,395.13 × 25,451.61
  4. Step 4: Simplify right side
    81,626.52x = 3,115,153,114.66
  5. Step 5: Solve for x
    x = 3,115,153,114.66/81,626.52
  6. Step 6: Final answer
    x = 38,163.49

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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.