Home / 40,791.20-61,138.20-17,098.70

Finding the Fourth Proportional to 40,791.20, 61,138.20 and 17,098.70

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Solution

The fourth proportional to 40,791.20, 61,138.20 and 17,098.70 is: 25,627.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,791.20 : 61,138.20 = 17,098.70 : x
  2. Step 2: Convert to fraction form
    40,791.20/61,138.20 = 17,098.70/x
  3. Step 3: Cross multiply
    40,791.20x = 61,138.20 × 17,098.70
  4. Step 4: Simplify right side
    40,791.20x = 1,045,383,740.34
  5. Step 5: Solve for x
    x = 1,045,383,740.34/40,791.20
  6. Step 6: Final answer
    x = 25,627.68

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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.