Home / 68,074.65-102,036.30-51,380.55

Finding the Fourth Proportional to 68,074.65, 102,036.30 and 51,380.55

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Solution

The fourth proportional to 68,074.65, 102,036.30 and 51,380.55 is: 77,013.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,074.65 : 102,036.30 = 51,380.55 : x
  2. Step 2: Convert to fraction form
    68,074.65/102,036.30 = 51,380.55/x
  3. Step 3: Cross multiply
    68,074.65x = 102,036.30 × 51,380.55
  4. Step 4: Simplify right side
    68,074.65x = 5,242,681,213.97
  5. Step 5: Solve for x
    x = 5,242,681,213.97/68,074.65
  6. Step 6: Final answer
    x = 77,013.71

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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.