Home / 68,861.72-103,336.27-29,419.13

Finding the Fourth Proportional to 68,861.72, 103,336.27 and 29,419.13

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Solution

The fourth proportional to 68,861.72, 103,336.27 and 29,419.13 is: 44,147.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,861.72 : 103,336.27 = 29,419.13 : x
  2. Step 2: Convert to fraction form
    68,861.72/103,336.27 = 29,419.13/x
  3. Step 3: Cross multiply
    68,861.72x = 103,336.27 × 29,419.13
  4. Step 4: Simplify right side
    68,861.72x = 3,040,063,123.61
  5. Step 5: Solve for x
    x = 3,040,063,123.61/68,861.72
  6. Step 6: Final answer
    x = 44,147.36

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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.