Home / 66,336.45-91,546.20-36,122.28

Finding the Fourth Proportional to 66,336.45, 91,546.20 and 36,122.28

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Solution

The fourth proportional to 66,336.45, 91,546.20 and 36,122.28 is: 49,849.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,336.45 : 91,546.20 = 36,122.28 : x
  2. Step 2: Convert to fraction form
    66,336.45/91,546.20 = 36,122.28/x
  3. Step 3: Cross multiply
    66,336.45x = 91,546.20 × 36,122.28
  4. Step 4: Simplify right side
    66,336.45x = 3,306,857,469.34
  5. Step 5: Solve for x
    x = 3,306,857,469.34/66,336.45
  6. Step 6: Final answer
    x = 49,849.78

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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.