Home / 80,661.56-111,316.88-44,850.78

Finding the Fourth Proportional to 80,661.56, 111,316.88 and 44,850.78

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Solution

The fourth proportional to 80,661.56, 111,316.88 and 44,850.78 is: 61,896.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,661.56 : 111,316.88 = 44,850.78 : x
  2. Step 2: Convert to fraction form
    80,661.56/111,316.88 = 44,850.78/x
  3. Step 3: Cross multiply
    80,661.56x = 111,316.88 × 44,850.78
  4. Step 4: Simplify right side
    80,661.56x = 4,992,649,007.29
  5. Step 5: Solve for x
    x = 4,992,649,007.29/80,661.56
  6. Step 6: Final answer
    x = 61,896.27

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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.