Home / 90,845.82-136,268.77-40,867.54

Finding the Fourth Proportional to 90,845.82, 136,268.77 and 40,867.54

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Solution

The fourth proportional to 90,845.82, 136,268.77 and 40,867.54 is: 61,301.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,845.82 : 136,268.77 = 40,867.54 : x
  2. Step 2: Convert to fraction form
    90,845.82/136,268.77 = 40,867.54/x
  3. Step 3: Cross multiply
    90,845.82x = 136,268.77 × 40,867.54
  4. Step 4: Simplify right side
    90,845.82x = 5,568,969,408.73
  5. Step 5: Solve for x
    x = 5,568,969,408.73/90,845.82
  6. Step 6: Final answer
    x = 61,301.33

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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.