Home / 82,535.12-123,793.08-27,131.60

Finding the Fourth Proportional to 82,535.12, 123,793.08 and 27,131.60

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Solution

The fourth proportional to 82,535.12, 123,793.08 and 27,131.60 is: 40,694.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,535.12 : 123,793.08 = 27,131.60 : x
  2. Step 2: Convert to fraction form
    82,535.12/123,793.08 = 27,131.60/x
  3. Step 3: Cross multiply
    82,535.12x = 123,793.08 × 27,131.60
  4. Step 4: Simplify right side
    82,535.12x = 3,358,704,329.33
  5. Step 5: Solve for x
    x = 3,358,704,329.33/82,535.12
  6. Step 6: Final answer
    x = 40,694.24

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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.