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Finding the Fourth Proportional to 66,982.68, 100,489.32 and 29,553.36

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Solution

The fourth proportional to 66,982.68, 100,489.32 and 29,553.36 is: 44,336.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,982.68 : 100,489.32 = 29,553.36 : x
  2. Step 2: Convert to fraction form
    66,982.68/100,489.32 = 29,553.36/x
  3. Step 3: Cross multiply
    66,982.68x = 100,489.32 × 29,553.36
  4. Step 4: Simplify right side
    66,982.68x = 2,969,797,050.12
  5. Step 5: Solve for x
    x = 2,969,797,050.12/66,982.68
  6. Step 6: Final answer
    x = 44,336.79

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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.