Home / 89,198.64-123,177.48-57,422.80

Finding the Fourth Proportional to 89,198.64, 123,177.48 and 57,422.80

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Solution

The fourth proportional to 89,198.64, 123,177.48 and 57,422.80 is: 79,297.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,198.64 : 123,177.48 = 57,422.80 : x
  2. Step 2: Convert to fraction form
    89,198.64/123,177.48 = 57,422.80/x
  3. Step 3: Cross multiply
    89,198.64x = 123,177.48 × 57,422.80
  4. Step 4: Simplify right side
    89,198.64x = 7,073,195,798.54
  5. Step 5: Solve for x
    x = 7,073,195,798.54/89,198.64
  6. Step 6: Final answer
    x = 79,297.13

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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.