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Finding the Fourth Proportional to 85,112.88, 127,626.60 and 49,585.68

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Solution

The fourth proportional to 85,112.88, 127,626.60 and 49,585.68 is: 74,353.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,112.88 : 127,626.60 = 49,585.68 : x
  2. Step 2: Convert to fraction form
    85,112.88/127,626.60 = 49,585.68/x
  3. Step 3: Cross multiply
    85,112.88x = 127,626.60 × 49,585.68
  4. Step 4: Simplify right side
    85,112.88x = 6,328,451,747.09
  5. Step 5: Solve for x
    x = 6,328,451,747.09/85,112.88
  6. Step 6: Final answer
    x = 74,353.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.