Home / 66,179.44-91,286.49-39,302.56

Finding the Fourth Proportional to 66,179.44, 91,286.49 and 39,302.56

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Solution

The fourth proportional to 66,179.44, 91,286.49 and 39,302.56 is: 54,213.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,179.44 : 91,286.49 = 39,302.56 : x
  2. Step 2: Convert to fraction form
    66,179.44/91,286.49 = 39,302.56/x
  3. Step 3: Cross multiply
    66,179.44x = 91,286.49 × 39,302.56
  4. Step 4: Simplify right side
    66,179.44x = 3,587,792,750.41
  5. Step 5: Solve for x
    x = 3,587,792,750.41/66,179.44
  6. Step 6: Final answer
    x = 54,213.10

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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.