Home / 54,517.72-81,751.14-19,449.16

Finding the Fourth Proportional to 54,517.72, 81,751.14 and 19,449.16

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Solution

The fourth proportional to 54,517.72, 81,751.14 and 19,449.16 is: 29,164.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,517.72 : 81,751.14 = 19,449.16 : x
  2. Step 2: Convert to fraction form
    54,517.72/81,751.14 = 19,449.16/x
  3. Step 3: Cross multiply
    54,517.72x = 81,751.14 × 19,449.16
  4. Step 4: Simplify right side
    54,517.72x = 1,589,991,002.04
  5. Step 5: Solve for x
    x = 1,589,991,002.04/54,517.72
  6. Step 6: Final answer
    x = 29,164.66

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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.