Home / 68,388.27-94,391.55-40,103.07

Finding the Fourth Proportional to 68,388.27, 94,391.55 and 40,103.07

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Solution

The fourth proportional to 68,388.27, 94,391.55 and 40,103.07 is: 55,351.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,388.27 : 94,391.55 = 40,103.07 : x
  2. Step 2: Convert to fraction form
    68,388.27/94,391.55 = 40,103.07/x
  3. Step 3: Cross multiply
    68,388.27x = 94,391.55 × 40,103.07
  4. Step 4: Simplify right side
    68,388.27x = 3,785,390,937.06
  5. Step 5: Solve for x
    x = 3,785,390,937.06/68,388.27
  6. Step 6: Final answer
    x = 55,351.47

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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.