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Finding the Fourth Proportional to 66,520.63, 91,796.70 and 36,306.33

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Solution

The fourth proportional to 66,520.63, 91,796.70 and 36,306.33 is: 50,101.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,520.63 : 91,796.70 = 36,306.33 : x
  2. Step 2: Convert to fraction form
    66,520.63/91,796.70 = 36,306.33/x
  3. Step 3: Cross multiply
    66,520.63x = 91,796.70 × 36,306.33
  4. Step 4: Simplify right side
    66,520.63x = 3,332,801,283.11
  5. Step 5: Solve for x
    x = 3,332,801,283.11/66,520.63
  6. Step 6: Final answer
    x = 50,101.77

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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.