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Finding the Fourth Proportional to 54,107.72, 74,668.20 and 30,234.12

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Solution

The fourth proportional to 54,107.72, 74,668.20 and 30,234.12 is: 41,722.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,107.72 : 74,668.20 = 30,234.12 : x
  2. Step 2: Convert to fraction form
    54,107.72/74,668.20 = 30,234.12/x
  3. Step 3: Cross multiply
    54,107.72x = 74,668.20 × 30,234.12
  4. Step 4: Simplify right side
    54,107.72x = 2,257,527,318.98
  5. Step 5: Solve for x
    x = 2,257,527,318.98/54,107.72
  6. Step 6: Final answer
    x = 41,722.83

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.