Home / 47,780.10-71,648.55-21,471.30

Finding the Fourth Proportional to 47,780.10, 71,648.55 and 21,471.30

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Solution

The fourth proportional to 47,780.10, 71,648.55 and 21,471.30 is: 32,197.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,780.10 : 71,648.55 = 21,471.30 : x
  2. Step 2: Convert to fraction form
    47,780.10/71,648.55 = 21,471.30/x
  3. Step 3: Cross multiply
    47,780.10x = 71,648.55 × 21,471.30
  4. Step 4: Simplify right side
    47,780.10x = 1,538,387,511.62
  5. Step 5: Solve for x
    x = 1,538,387,511.62/47,780.10
  6. Step 6: Final answer
    x = 32,197.24

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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.