Home / 68,721.71-94,738.38-50,540.30

Finding the Fourth Proportional to 68,721.71, 94,738.38 and 50,540.30

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Solution

The fourth proportional to 68,721.71, 94,738.38 and 50,540.30 is: 69,673.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,721.71 : 94,738.38 = 50,540.30 : x
  2. Step 2: Convert to fraction form
    68,721.71/94,738.38 = 50,540.30/x
  3. Step 3: Cross multiply
    68,721.71x = 94,738.38 × 50,540.30
  4. Step 4: Simplify right side
    68,721.71x = 4,788,105,673.02
  5. Step 5: Solve for x
    x = 4,788,105,673.02/68,721.71
  6. Step 6: Final answer
    x = 69,673.85

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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.