Home / 68,627.75-102,942.83-18,713.12

Finding the Fourth Proportional to 68,627.75, 102,942.83 and 18,713.12

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Solution

The fourth proportional to 68,627.75, 102,942.83 and 18,713.12 is: 28,070.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,627.75 : 102,942.83 = 18,713.12 : x
  2. Step 2: Convert to fraction form
    68,627.75/102,942.83 = 18,713.12/x
  3. Step 3: Cross multiply
    68,627.75x = 102,942.83 × 18,713.12
  4. Step 4: Simplify right side
    68,627.75x = 1,926,380,922.65
  5. Step 5: Solve for x
    x = 1,926,380,922.65/68,627.75
  6. Step 6: Final answer
    x = 28,070.00

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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.