Home / 89,231.33-123,138.89-55,233.04

Finding the Fourth Proportional to 89,231.33, 123,138.89 and 55,233.04

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Solution

The fourth proportional to 89,231.33, 123,138.89 and 55,233.04 is: 76,221.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,231.33 : 123,138.89 = 55,233.04 : x
  2. Step 2: Convert to fraction form
    89,231.33/123,138.89 = 55,233.04/x
  3. Step 3: Cross multiply
    89,231.33x = 123,138.89 × 55,233.04
  4. Step 4: Simplify right side
    89,231.33x = 6,801,335,236.93
  5. Step 5: Solve for x
    x = 6,801,335,236.93/89,231.33
  6. Step 6: Final answer
    x = 76,221.38

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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.