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Finding the Fourth Proportional to 54,489.67, 81,734.33 and 14,508.65

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Solution

The fourth proportional to 54,489.67, 81,734.33 and 14,508.65 is: 21,762.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,489.67 : 81,734.33 = 14,508.65 : x
  2. Step 2: Convert to fraction form
    54,489.67/81,734.33 = 14,508.65/x
  3. Step 3: Cross multiply
    54,489.67x = 81,734.33 × 14,508.65
  4. Step 4: Simplify right side
    54,489.67x = 1,185,855,027.56
  5. Step 5: Solve for x
    x = 1,185,855,027.56/54,489.67
  6. Step 6: Final answer
    x = 21,762.93

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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.