Home / 54,759.11-82,139.28-17,318.28

Finding the Fourth Proportional to 54,759.11, 82,139.28 and 17,318.28

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Solution

The fourth proportional to 54,759.11, 82,139.28 and 17,318.28 is: 25,977.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,759.11 : 82,139.28 = 17,318.28 : x
  2. Step 2: Convert to fraction form
    54,759.11/82,139.28 = 17,318.28/x
  3. Step 3: Cross multiply
    54,759.11x = 82,139.28 × 17,318.28
  4. Step 4: Simplify right side
    54,759.11x = 1,422,511,050.04
  5. Step 5: Solve for x
    x = 1,422,511,050.04/54,759.11
  6. Step 6: Final answer
    x = 25,977.61

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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.