Home / 68,781.78-94,935.72-41,939.07

Finding the Fourth Proportional to 68,781.78, 94,935.72 and 41,939.07

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Solution

The fourth proportional to 68,781.78, 94,935.72 and 41,939.07 is: 57,886.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,781.78 : 94,935.72 = 41,939.07 : x
  2. Step 2: Convert to fraction form
    68,781.78/94,935.72 = 41,939.07/x
  3. Step 3: Cross multiply
    68,781.78x = 94,935.72 × 41,939.07
  4. Step 4: Simplify right side
    68,781.78x = 3,981,515,806.58
  5. Step 5: Solve for x
    x = 3,981,515,806.58/68,781.78
  6. Step 6: Final answer
    x = 57,886.20

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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.