Home / 82,918.12-124,375.90-20,589.16

Finding the Fourth Proportional to 82,918.12, 124,375.90 and 20,589.16

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Solution

The fourth proportional to 82,918.12, 124,375.90 and 20,589.16 is: 30,883.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,918.12 : 124,375.90 = 20,589.16 : x
  2. Step 2: Convert to fraction form
    82,918.12/124,375.90 = 20,589.16/x
  3. Step 3: Cross multiply
    82,918.12x = 124,375.90 × 20,589.16
  4. Step 4: Simplify right side
    82,918.12x = 2,560,795,305.24
  5. Step 5: Solve for x
    x = 2,560,795,305.24/82,918.12
  6. Step 6: Final answer
    x = 30,883.42

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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.