Home / 74,469.12-102,691.20-49,309.44

Finding the Fourth Proportional to 74,469.12, 102,691.20 and 49,309.44

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Solution

The fourth proportional to 74,469.12, 102,691.20 and 49,309.44 is: 67,996.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,469.12 : 102,691.20 = 49,309.44 : x
  2. Step 2: Convert to fraction form
    74,469.12/102,691.20 = 49,309.44/x
  3. Step 3: Cross multiply
    74,469.12x = 102,691.20 × 49,309.44
  4. Step 4: Simplify right side
    74,469.12x = 5,063,645,564.93
  5. Step 5: Solve for x
    x = 5,063,645,564.93/74,469.12
  6. Step 6: Final answer
    x = 67,996.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.