Home / 66,680.28-91,871.10-43,979.22

Finding the Fourth Proportional to 66,680.28, 91,871.10 and 43,979.22

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Solution

The fourth proportional to 66,680.28, 91,871.10 and 43,979.22 is: 60,593.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,680.28 : 91,871.10 = 43,979.22 : x
  2. Step 2: Convert to fraction form
    66,680.28/91,871.10 = 43,979.22/x
  3. Step 3: Cross multiply
    66,680.28x = 91,871.10 × 43,979.22
  4. Step 4: Simplify right side
    66,680.28x = 4,040,419,318.54
  5. Step 5: Solve for x
    x = 4,040,419,318.54/66,680.28
  6. Step 6: Final answer
    x = 60,593.92

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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.