Home / 68,388.38-94,391.71-40,103.18

Finding the Fourth Proportional to 68,388.38, 94,391.71 and 40,103.18

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Solution

The fourth proportional to 68,388.38, 94,391.71 and 40,103.18 is: 55,351.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,388.38 : 94,391.71 = 40,103.18 : x
  2. Step 2: Convert to fraction form
    68,388.38/94,391.71 = 40,103.18/x
  3. Step 3: Cross multiply
    68,388.38x = 94,391.71 × 40,103.18
  4. Step 4: Simplify right side
    68,388.38x = 3,785,407,736.64
  5. Step 5: Solve for x
    x = 3,785,407,736.64/68,388.38
  6. Step 6: Final answer
    x = 55,351.62

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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.