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Finding the Fourth Proportional to 66,375.60, 91,597.96 and 36,160.86

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Solution

The fourth proportional to 66,375.60, 91,597.96 and 36,160.86 is: 49,901.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,375.60 : 91,597.96 = 36,160.86 : x
  2. Step 2: Convert to fraction form
    66,375.60/91,597.96 = 36,160.86/x
  3. Step 3: Cross multiply
    66,375.60x = 91,597.96 × 36,160.86
  4. Step 4: Simplify right side
    66,375.60x = 3,312,261,007.85
  5. Step 5: Solve for x
    x = 3,312,261,007.85/66,375.60
  6. Step 6: Final answer
    x = 49,901.79

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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.