Home / 82,517.54-123,756.39-38,101.59

Finding the Fourth Proportional to 82,517.54, 123,756.39 and 38,101.59

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Solution

The fourth proportional to 82,517.54, 123,756.39 and 38,101.59 is: 57,143.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,517.54 : 123,756.39 = 38,101.59 : x
  2. Step 2: Convert to fraction form
    82,517.54/123,756.39 = 38,101.59/x
  3. Step 3: Cross multiply
    82,517.54x = 123,756.39 × 38,101.59
  4. Step 4: Simplify right side
    82,517.54x = 4,715,315,231.66
  5. Step 5: Solve for x
    x = 4,715,315,231.66/82,517.54
  6. Step 6: Final answer
    x = 57,143.19

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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.