Home / 47,432.72-71,132.30-20,791.64

Finding the Fourth Proportional to 47,432.72, 71,132.30 and 20,791.64

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Solution

The fourth proportional to 47,432.72, 71,132.30 and 20,791.64 is: 31,180.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,432.72 : 71,132.30 = 20,791.64 : x
  2. Step 2: Convert to fraction form
    47,432.72/71,132.30 = 20,791.64/x
  3. Step 3: Cross multiply
    47,432.72x = 71,132.30 × 20,791.64
  4. Step 4: Simplify right side
    47,432.72x = 1,478,957,173.97
  5. Step 5: Solve for x
    x = 1,478,957,173.97/47,432.72
  6. Step 6: Final answer
    x = 31,180.10

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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.