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Finding the Fourth Proportional to 66,844.80, 100,264.32 and 27,391.68

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Solution

The fourth proportional to 66,844.80, 100,264.32 and 27,391.68 is: 41,086.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,844.80 : 100,264.32 = 27,391.68 : x
  2. Step 2: Convert to fraction form
    66,844.80/100,264.32 = 27,391.68/x
  3. Step 3: Cross multiply
    66,844.80x = 100,264.32 × 27,391.68
  4. Step 4: Simplify right side
    66,844.80x = 2,746,408,168.86
  5. Step 5: Solve for x
    x = 2,746,408,168.86/66,844.80
  6. Step 6: Final answer
    x = 41,086.34

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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.