Home / 68,388.26-94,391.54-40,103.06

Finding the Fourth Proportional to 68,388.26, 94,391.54 and 40,103.06

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Solution

The fourth proportional to 68,388.26, 94,391.54 and 40,103.06 is: 55,351.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,388.26 : 94,391.54 = 40,103.06 : x
  2. Step 2: Convert to fraction form
    68,388.26/94,391.54 = 40,103.06/x
  3. Step 3: Cross multiply
    68,388.26x = 94,391.54 × 40,103.06
  4. Step 4: Simplify right side
    68,388.26x = 3,785,389,220.41
  5. Step 5: Solve for x
    x = 3,785,389,220.41/68,388.26
  6. Step 6: Final answer
    x = 55,351.45

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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.