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Finding the Fourth Proportional to 68,141.22, 102,129.12 and 36,473.46

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Solution

The fourth proportional to 68,141.22, 102,129.12 and 36,473.46 is: 54,665.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,141.22 : 102,129.12 = 36,473.46 : x
  2. Step 2: Convert to fraction form
    68,141.22/102,129.12 = 36,473.46/x
  3. Step 3: Cross multiply
    68,141.22x = 102,129.12 × 36,473.46
  4. Step 4: Simplify right side
    68,141.22x = 3,725,002,373.16
  5. Step 5: Solve for x
    x = 3,725,002,373.16/68,141.22
  6. Step 6: Final answer
    x = 54,665.92

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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.