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Finding the Fourth Proportional to 71,139.08, 106,720.21 and 33,226.27

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Solution

The fourth proportional to 71,139.08, 106,720.21 and 33,226.27 is: 49,844.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,139.08 : 106,720.21 = 33,226.27 : x
  2. Step 2: Convert to fraction form
    71,139.08/106,720.21 = 33,226.27/x
  3. Step 3: Cross multiply
    71,139.08x = 106,720.21 × 33,226.27
  4. Step 4: Simplify right side
    71,139.08x = 3,545,914,162.05
  5. Step 5: Solve for x
    x = 3,545,914,162.05/71,139.08
  6. Step 6: Final answer
    x = 49,844.81

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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.