Home / 82,249.10-123,378.15-26,085.14

Finding the Fourth Proportional to 82,249.10, 123,378.15 and 26,085.14

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Solution

The fourth proportional to 82,249.10, 123,378.15 and 26,085.14 is: 39,129.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,249.10 : 123,378.15 = 26,085.14 : x
  2. Step 2: Convert to fraction form
    82,249.10/123,378.15 = 26,085.14/x
  3. Step 3: Cross multiply
    82,249.10x = 123,378.15 × 26,085.14
  4. Step 4: Simplify right side
    82,249.10x = 3,218,335,698.80
  5. Step 5: Solve for x
    x = 3,218,335,698.80/82,249.10
  6. Step 6: Final answer
    x = 39,129.13

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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.