Home / 89,760.40-123,871.86-51,523.24

Finding the Fourth Proportional to 89,760.40, 123,871.86 and 51,523.24

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Solution

The fourth proportional to 89,760.40, 123,871.86 and 51,523.24 is: 71,103.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,760.40 : 123,871.86 = 51,523.24 : x
  2. Step 2: Convert to fraction form
    89,760.40/123,871.86 = 51,523.24/x
  3. Step 3: Cross multiply
    89,760.40x = 123,871.86 × 51,523.24
  4. Step 4: Simplify right side
    89,760.40x = 6,382,279,572.03
  5. Step 5: Solve for x
    x = 6,382,279,572.03/89,760.40
  6. Step 6: Final answer
    x = 71,103.51

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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.