Home / 89,231.48-123,138.60-48,944.44

Finding the Fourth Proportional to 89,231.48, 123,138.60 and 48,944.44

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Solution

The fourth proportional to 89,231.48, 123,138.60 and 48,944.44 is: 67,542.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,231.48 : 123,138.60 = 48,944.44 : x
  2. Step 2: Convert to fraction form
    89,231.48/123,138.60 = 48,944.44/x
  3. Step 3: Cross multiply
    89,231.48x = 123,138.60 × 48,944.44
  4. Step 4: Simplify right side
    89,231.48x = 6,026,949,819.38
  5. Step 5: Solve for x
    x = 6,026,949,819.38/89,231.48
  6. Step 6: Final answer
    x = 67,542.87

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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.