Home / 54,759.10-82,138.11-17,319.16

Finding the Fourth Proportional to 54,759.10, 82,138.11 and 17,319.16

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Solution

The fourth proportional to 54,759.10, 82,138.11 and 17,319.16 is: 25,978.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,759.10 : 82,138.11 = 17,319.16 : x
  2. Step 2: Convert to fraction form
    54,759.10/82,138.11 = 17,319.16/x
  3. Step 3: Cross multiply
    54,759.10x = 82,138.11 × 17,319.16
  4. Step 4: Simplify right side
    54,759.10x = 1,422,563,069.19
  5. Step 5: Solve for x
    x = 1,422,563,069.19/54,759.10
  6. Step 6: Final answer
    x = 25,978.57

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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.