Home / 90,279.88-135,382.38-34,110.28

Finding the Fourth Proportional to 90,279.88, 135,382.38 and 34,110.28

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Solution

The fourth proportional to 90,279.88, 135,382.38 and 34,110.28 is: 51,151.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,279.88 : 135,382.38 = 34,110.28 : x
  2. Step 2: Convert to fraction form
    90,279.88/135,382.38 = 34,110.28/x
  3. Step 3: Cross multiply
    90,279.88x = 135,382.38 × 34,110.28
  4. Step 4: Simplify right side
    90,279.88x = 4,617,930,888.87
  5. Step 5: Solve for x
    x = 4,617,930,888.87/90,279.88
  6. Step 6: Final answer
    x = 51,151.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.