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Finding the Fourth Proportional to 41,089.88, 61,639.67 and 13,387.88

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Solution

The fourth proportional to 41,089.88, 61,639.67 and 13,387.88 is: 20,083.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,089.88 : 61,639.67 = 13,387.88 : x
  2. Step 2: Convert to fraction form
    41,089.88/61,639.67 = 13,387.88/x
  3. Step 3: Cross multiply
    41,089.88x = 61,639.67 × 13,387.88
  4. Step 4: Simplify right side
    41,089.88x = 825,224,230.47
  5. Step 5: Solve for x
    x = 825,224,230.47/41,089.88
  6. Step 6: Final answer
    x = 20,083.40

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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.