Home / 89,319.54-123,273.54-51,087.14

Finding the Fourth Proportional to 89,319.54, 123,273.54 and 51,087.14

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Solution

The fourth proportional to 89,319.54, 123,273.54 and 51,087.14 is: 70,507.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,319.54 : 123,273.54 = 51,087.14 : x
  2. Step 2: Convert to fraction form
    89,319.54/123,273.54 = 51,087.14/x
  3. Step 3: Cross multiply
    89,319.54x = 123,273.54 × 51,087.14
  4. Step 4: Simplify right side
    89,319.54x = 6,297,691,979.91
  5. Step 5: Solve for x
    x = 6,297,691,979.91/89,319.54
  6. Step 6: Final answer
    x = 70,507.44

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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.