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Finding the Fourth Proportional to 66,323.21, 91,524.28 and 36,107.86

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Solution

The fourth proportional to 66,323.21, 91,524.28 and 36,107.86 is: 49,827.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,323.21 : 91,524.28 = 36,107.86 : x
  2. Step 2: Convert to fraction form
    66,323.21/91,524.28 = 36,107.86/x
  3. Step 3: Cross multiply
    66,323.21x = 91,524.28 × 36,107.86
  4. Step 4: Simplify right side
    66,323.21x = 3,304,746,195.19
  5. Step 5: Solve for x
    x = 3,304,746,195.19/66,323.21
  6. Step 6: Final answer
    x = 49,827.90

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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.