Home / 89,899.62-124,115.13-79,936.26

Finding the Fourth Proportional to 89,899.62, 124,115.13 and 79,936.26

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Solution

The fourth proportional to 89,899.62, 124,115.13 and 79,936.26 is: 110,359.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,899.62 : 124,115.13 = 79,936.26 : x
  2. Step 2: Convert to fraction form
    89,899.62/124,115.13 = 79,936.26/x
  3. Step 3: Cross multiply
    89,899.62x = 124,115.13 × 79,936.26
  4. Step 4: Simplify right side
    89,899.62x = 9,921,299,301.61
  5. Step 5: Solve for x
    x = 9,921,299,301.61/89,899.62
  6. Step 6: Final answer
    x = 110,359.75

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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.