Home / 66,320.79-91,520.46-36,105.54

Finding the Fourth Proportional to 66,320.79, 91,520.46 and 36,105.54

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Solution

The fourth proportional to 66,320.79, 91,520.46 and 36,105.54 is: 49,824.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,320.79 : 91,520.46 = 36,105.54 : x
  2. Step 2: Convert to fraction form
    66,320.79/91,520.46 = 36,105.54/x
  3. Step 3: Cross multiply
    66,320.79x = 91,520.46 × 36,105.54
  4. Step 4: Simplify right side
    66,320.79x = 3,304,395,629.35
  5. Step 5: Solve for x
    x = 3,304,395,629.35/66,320.79
  6. Step 6: Final answer
    x = 49,824.43

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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.