Home / 68,828.72-94,972.12-40,540.04

Finding the Fourth Proportional to 68,828.72, 94,972.12 and 40,540.04

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Solution

The fourth proportional to 68,828.72, 94,972.12 and 40,540.04 is: 55,938.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,828.72 : 94,972.12 = 40,540.04 : x
  2. Step 2: Convert to fraction form
    68,828.72/94,972.12 = 40,540.04/x
  3. Step 3: Cross multiply
    68,828.72x = 94,972.12 × 40,540.04
  4. Step 4: Simplify right side
    68,828.72x = 3,850,173,543.68
  5. Step 5: Solve for x
    x = 3,850,173,543.68/68,828.72
  6. Step 6: Final answer
    x = 55,938.47

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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.