Home / 68,620.44-102,845.88-40,512

Finding the Fourth Proportional to 68,620.44, 102,845.88 and 40,512

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Solution

The fourth proportional to 68,620.44, 102,845.88 and 40,512 is: 60,717.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,620.44 : 102,845.88 = 40,512 : x
  2. Step 2: Convert to fraction form
    68,620.44/102,845.88 = 40,512/x
  3. Step 3: Cross multiply
    68,620.44x = 102,845.88 × 40,512
  4. Step 4: Simplify right side
    68,620.44x = 4,166,492,290.56
  5. Step 5: Solve for x
    x = 4,166,492,290.56/68,620.44
  6. Step 6: Final answer
    x = 60,717.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.