Home / 54,759.61-82,140.03-17,318.78

Finding the Fourth Proportional to 54,759.61, 82,140.03 and 17,318.78

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Solution

The fourth proportional to 54,759.61, 82,140.03 and 17,318.78 is: 25,978.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,759.61 : 82,140.03 = 17,318.78 : x
  2. Step 2: Convert to fraction form
    54,759.61/82,140.03 = 17,318.78/x
  3. Step 3: Cross multiply
    54,759.61x = 82,140.03 × 17,318.78
  4. Step 4: Simplify right side
    54,759.61x = 1,422,565,108.76
  5. Step 5: Solve for x
    x = 1,422,565,108.76/54,759.61
  6. Step 6: Final answer
    x = 25,978.36

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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.