Home / 71,001.20-106,516.92-21,081.44

Finding the Fourth Proportional to 71,001.20, 106,516.92 and 21,081.44

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Solution

The fourth proportional to 71,001.20, 106,516.92 and 21,081.44 is: 31,626.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,001.20 : 106,516.92 = 21,081.44 : x
  2. Step 2: Convert to fraction form
    71,001.20/106,516.92 = 21,081.44/x
  3. Step 3: Cross multiply
    71,001.20x = 106,516.92 × 21,081.44
  4. Step 4: Simplify right side
    71,001.20x = 2,245,530,057.96
  5. Step 5: Solve for x
    x = 2,245,530,057.96/71,001.20
  6. Step 6: Final answer
    x = 31,626.65

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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.