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Finding the Fourth Proportional to 49,100.88, 67,761 and 27,879.60

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Solution

The fourth proportional to 49,100.88, 67,761 and 27,879.60 is: 38,474.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,100.88 : 67,761 = 27,879.60 : x
  2. Step 2: Convert to fraction form
    49,100.88/67,761 = 27,879.60/x
  3. Step 3: Cross multiply
    49,100.88x = 67,761 × 27,879.60
  4. Step 4: Simplify right side
    49,100.88x = 1,889,149,575.60
  5. Step 5: Solve for x
    x = 1,889,149,575.60/49,100.88
  6. Step 6: Final answer
    x = 38,474.86

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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.