Home / 47,439.78-71,012.04-29,872.70

Finding the Fourth Proportional to 47,439.78, 71,012.04 and 29,872.70

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Solution

The fourth proportional to 47,439.78, 71,012.04 and 29,872.70 is: 44,716.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,439.78 : 71,012.04 = 29,872.70 : x
  2. Step 2: Convert to fraction form
    47,439.78/71,012.04 = 29,872.70/x
  3. Step 3: Cross multiply
    47,439.78x = 71,012.04 × 29,872.70
  4. Step 4: Simplify right side
    47,439.78x = 2,121,321,367.31
  5. Step 5: Solve for x
    x = 2,121,321,367.31/47,439.78
  6. Step 6: Final answer
    x = 44,716.09

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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.