Home / 68,785.08-94,921.43-41,917.78

Finding the Fourth Proportional to 68,785.08, 94,921.43 and 41,917.78

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Solution

The fourth proportional to 68,785.08, 94,921.43 and 41,917.78 is: 57,845.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,785.08 : 94,921.43 = 41,917.78 : x
  2. Step 2: Convert to fraction form
    68,785.08/94,921.43 = 41,917.78/x
  3. Step 3: Cross multiply
    68,785.08x = 94,921.43 × 41,917.78
  4. Step 4: Simplify right side
    68,785.08x = 3,978,895,620.03
  5. Step 5: Solve for x
    x = 3,978,895,620.03/68,785.08
  6. Step 6: Final answer
    x = 57,845.33

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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.