Home / 85,147.26-127,720.90-25,983.24

Finding the Fourth Proportional to 85,147.26, 127,720.90 and 25,983.24

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Solution

The fourth proportional to 85,147.26, 127,720.90 and 25,983.24 is: 38,974.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,147.26 : 127,720.90 = 25,983.24 : x
  2. Step 2: Convert to fraction form
    85,147.26/127,720.90 = 25,983.24/x
  3. Step 3: Cross multiply
    85,147.26x = 127,720.90 × 25,983.24
  4. Step 4: Simplify right side
    85,147.26x = 3,318,602,797.72
  5. Step 5: Solve for x
    x = 3,318,602,797.72/85,147.26
  6. Step 6: Final answer
    x = 38,974.86

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Similar ratio
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1.5x scale

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.