Home / 68,182.20-102,217.38-30,731.04

Finding the Fourth Proportional to 68,182.20, 102,217.38 and 30,731.04

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Solution

The fourth proportional to 68,182.20, 102,217.38 and 30,731.04 is: 46,071.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,182.20 : 102,217.38 = 30,731.04 : x
  2. Step 2: Convert to fraction form
    68,182.20/102,217.38 = 30,731.04/x
  3. Step 3: Cross multiply
    68,182.20x = 102,217.38 × 30,731.04
  4. Step 4: Simplify right side
    68,182.20x = 3,141,246,393.48
  5. Step 5: Solve for x
    x = 3,141,246,393.48/68,182.20
  6. Step 6: Final answer
    x = 46,071.36

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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.