Home / 82,179.75-123,279.35-26,775.75

Finding the Fourth Proportional to 82,179.75, 123,279.35 and 26,775.75

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Solution

The fourth proportional to 82,179.75, 123,279.35 and 26,775.75 is: 40,166.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,179.75 : 123,279.35 = 26,775.75 : x
  2. Step 2: Convert to fraction form
    82,179.75/123,279.35 = 26,775.75/x
  3. Step 3: Cross multiply
    82,179.75x = 123,279.35 × 26,775.75
  4. Step 4: Simplify right side
    82,179.75x = 3,300,896,921.88
  5. Step 5: Solve for x
    x = 3,300,896,921.88/82,179.75
  6. Step 6: Final answer
    x = 40,166.79

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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.