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Finding the Fourth Proportional to 85,049.92, 127,458.08 and 43,409.60

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Solution

The fourth proportional to 85,049.92, 127,458.08 and 43,409.60 is: 65,054.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,049.92 : 127,458.08 = 43,409.60 : x
  2. Step 2: Convert to fraction form
    85,049.92/127,458.08 = 43,409.60/x
  3. Step 3: Cross multiply
    85,049.92x = 127,458.08 × 43,409.60
  4. Step 4: Simplify right side
    85,049.92x = 5,532,904,269.57
  5. Step 5: Solve for x
    x = 5,532,904,269.57/85,049.92
  6. Step 6: Final answer
    x = 65,054.79

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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.