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Finding the Fourth Proportional to 66,873.20, 100,348.68 and 27,458.60

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Solution

The fourth proportional to 66,873.20, 100,348.68 and 27,458.60 is: 41,203.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,873.20 : 100,348.68 = 27,458.60 : x
  2. Step 2: Convert to fraction form
    66,873.20/100,348.68 = 27,458.60/x
  3. Step 3: Cross multiply
    66,873.20x = 100,348.68 × 27,458.60
  4. Step 4: Simplify right side
    66,873.20x = 2,755,434,264.65
  5. Step 5: Solve for x
    x = 2,755,434,264.65/66,873.20
  6. Step 6: Final answer
    x = 41,203.86

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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.