Home / 89,227.78-123,278.97-75,939.46

Finding the Fourth Proportional to 89,227.78, 123,278.97 and 75,939.46

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Solution

The fourth proportional to 89,227.78, 123,278.97 and 75,939.46 is: 104,919.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,227.78 : 123,278.97 = 75,939.46 : x
  2. Step 2: Convert to fraction form
    89,227.78/123,278.97 = 75,939.46/x
  3. Step 3: Cross multiply
    89,227.78x = 123,278.97 × 75,939.46
  4. Step 4: Simplify right side
    89,227.78x = 9,361,738,411.16
  5. Step 5: Solve for x
    x = 9,361,738,411.16/89,227.78
  6. Step 6: Final answer
    x = 104,919.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.