Home / 71,231.20-106,807.31-29,140.85

Finding the Fourth Proportional to 71,231.20, 106,807.31 and 29,140.85

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Solution

The fourth proportional to 71,231.20, 106,807.31 and 29,140.85 is: 43,695.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,231.20 : 106,807.31 = 29,140.85 : x
  2. Step 2: Convert to fraction form
    71,231.20/106,807.31 = 29,140.85/x
  3. Step 3: Cross multiply
    71,231.20x = 106,807.31 × 29,140.85
  4. Step 4: Simplify right side
    71,231.20x = 3,112,455,799.61
  5. Step 5: Solve for x
    x = 3,112,455,799.61/71,231.20
  6. Step 6: Final answer
    x = 43,695.12

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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.