Home / 81,505.38-122,275.68-25,344.42

Finding the Fourth Proportional to 81,505.38, 122,275.68 and 25,344.42

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Solution

The fourth proportional to 81,505.38, 122,275.68 and 25,344.42 is: 38,022.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,505.38 : 122,275.68 = 25,344.42 : x
  2. Step 2: Convert to fraction form
    81,505.38/122,275.68 = 25,344.42/x
  3. Step 3: Cross multiply
    81,505.38x = 122,275.68 × 25,344.42
  4. Step 4: Simplify right side
    81,505.38x = 3,099,006,189.71
  5. Step 5: Solve for x
    x = 3,099,006,189.71/81,505.38
  6. Step 6: Final answer
    x = 38,022.11

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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.