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Finding the Fourth Proportional to 73,270.50, 109,910.41 and 20,684.09

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Solution

The fourth proportional to 73,270.50, 109,910.41 and 20,684.09 is: 31,027.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,270.50 : 109,910.41 = 20,684.09 : x
  2. Step 2: Convert to fraction form
    73,270.50/109,910.41 = 20,684.09/x
  3. Step 3: Cross multiply
    73,270.50x = 109,910.41 × 20,684.09
  4. Step 4: Simplify right side
    73,270.50x = 2,273,396,211.11
  5. Step 5: Solve for x
    x = 2,273,396,211.11/73,270.50
  6. Step 6: Final answer
    x = 31,027.44

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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.