Home / 68,118.24-102,157.92-28,668

Finding the Fourth Proportional to 68,118.24, 102,157.92 and 28,668

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Solution

The fourth proportional to 68,118.24, 102,157.92 and 28,668 is: 42,993.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,118.24 : 102,157.92 = 28,668 : x
  2. Step 2: Convert to fraction form
    68,118.24/102,157.92 = 28,668/x
  3. Step 3: Cross multiply
    68,118.24x = 102,157.92 × 28,668
  4. Step 4: Simplify right side
    68,118.24x = 2,928,663,250.56
  5. Step 5: Solve for x
    x = 2,928,663,250.56/68,118.24
  6. Step 6: Final answer
    x = 42,993.82

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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.