Home / 89,749.40-123,853.77-49,463.08

Finding the Fourth Proportional to 89,749.40, 123,853.77 and 49,463.08

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Solution

The fourth proportional to 89,749.40, 123,853.77 and 49,463.08 is: 68,258.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,749.40 : 123,853.77 = 49,463.08 : x
  2. Step 2: Convert to fraction form
    89,749.40/123,853.77 = 49,463.08/x
  3. Step 3: Cross multiply
    89,749.40x = 123,853.77 × 49,463.08
  4. Step 4: Simplify right side
    89,749.40x = 6,126,188,949.15
  5. Step 5: Solve for x
    x = 6,126,188,949.15/89,749.40
  6. Step 6: Final answer
    x = 68,258.83

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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.