Home / 66,439.38-91,687.06-36,224.46

Finding the Fourth Proportional to 66,439.38, 91,687.06 and 36,224.46

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Solution

The fourth proportional to 66,439.38, 91,687.06 and 36,224.46 is: 49,990.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,439.38 : 91,687.06 = 36,224.46 : x
  2. Step 2: Convert to fraction form
    66,439.38/91,687.06 = 36,224.46/x
  3. Step 3: Cross multiply
    66,439.38x = 91,687.06 × 36,224.46
  4. Step 4: Simplify right side
    66,439.38x = 3,321,313,938.94
  5. Step 5: Solve for x
    x = 3,321,313,938.94/66,439.38
  6. Step 6: Final answer
    x = 49,990.14

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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.