Home / 62,791.20-94,128.24-21,209.12

Finding the Fourth Proportional to 62,791.20, 94,128.24 and 21,209.12

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Solution

The fourth proportional to 62,791.20, 94,128.24 and 21,209.12 is: 31,793.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,791.20 : 94,128.24 = 21,209.12 : x
  2. Step 2: Convert to fraction form
    62,791.20/94,128.24 = 21,209.12/x
  3. Step 3: Cross multiply
    62,791.20x = 94,128.24 × 21,209.12
  4. Step 4: Simplify right side
    62,791.20x = 1,996,377,137.55
  5. Step 5: Solve for x
    x = 1,996,377,137.55/62,791.20
  6. Step 6: Final answer
    x = 31,793.90

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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.