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Finding the Fourth Proportional to 71,002.52, 106,520.48 and 21,083.04

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Solution

The fourth proportional to 71,002.52, 106,520.48 and 21,083.04 is: 31,629.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,002.52 : 106,520.48 = 21,083.04 : x
  2. Step 2: Convert to fraction form
    71,002.52/106,520.48 = 21,083.04/x
  3. Step 3: Cross multiply
    71,002.52x = 106,520.48 × 21,083.04
  4. Step 4: Simplify right side
    71,002.52x = 2,245,775,540.66
  5. Step 5: Solve for x
    x = 2,245,775,540.66/71,002.52
  6. Step 6: Final answer
    x = 31,629.52

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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.