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Finding the Fourth Proportional to 66,379.92, 91,604.24 and 36,571.92

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Solution

The fourth proportional to 66,379.92, 91,604.24 and 36,571.92 is: 50,469.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,379.92 : 91,604.24 = 36,571.92 : x
  2. Step 2: Convert to fraction form
    66,379.92/91,604.24 = 36,571.92/x
  3. Step 3: Cross multiply
    66,379.92x = 91,604.24 × 36,571.92
  4. Step 4: Simplify right side
    66,379.92x = 3,350,142,936.94
  5. Step 5: Solve for x
    x = 3,350,142,936.94/66,379.92
  6. Step 6: Final answer
    x = 50,469.22

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1.5x scale

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.