Home / 68,635.20-102,972.24-40,580.04

Finding the Fourth Proportional to 68,635.20, 102,972.24 and 40,580.04

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Solution

The fourth proportional to 68,635.20, 102,972.24 and 40,580.04 is: 60,881.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,635.20 : 102,972.24 = 40,580.04 : x
  2. Step 2: Convert to fraction form
    68,635.20/102,972.24 = 40,580.04/x
  3. Step 3: Cross multiply
    68,635.20x = 102,972.24 × 40,580.04
  4. Step 4: Simplify right side
    68,635.20x = 4,178,617,618.09
  5. Step 5: Solve for x
    x = 4,178,617,618.09/68,635.20
  6. Step 6: Final answer
    x = 60,881.55

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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.