Home / 66,391.26-91,558.38-49,437.15

Finding the Fourth Proportional to 66,391.26, 91,558.38 and 49,437.15

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Solution

The fourth proportional to 66,391.26, 91,558.38 and 49,437.15 is: 68,177.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,391.26 : 91,558.38 = 49,437.15 : x
  2. Step 2: Convert to fraction form
    66,391.26/91,558.38 = 49,437.15/x
  3. Step 3: Cross multiply
    66,391.26x = 91,558.38 × 49,437.15
  4. Step 4: Simplify right side
    66,391.26x = 4,526,384,908.03
  5. Step 5: Solve for x
    x = 4,526,384,908.03/66,391.26
  6. Step 6: Final answer
    x = 68,177.43

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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.