Home / 47,851.20-71,747.82-19,789.68

Finding the Fourth Proportional to 47,851.20, 71,747.82 and 19,789.68

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Solution

The fourth proportional to 47,851.20, 71,747.82 and 19,789.68 is: 29,672.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,851.20 : 71,747.82 = 19,789.68 : x
  2. Step 2: Convert to fraction form
    47,851.20/71,747.82 = 19,789.68/x
  3. Step 3: Cross multiply
    47,851.20x = 71,747.82 × 19,789.68
  4. Step 4: Simplify right side
    47,851.20x = 1,419,866,398.50
  5. Step 5: Solve for x
    x = 1,419,866,398.50/47,851.20
  6. Step 6: Final answer
    x = 29,672.53

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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.