Home / 68,280.10-102,451.11-30,819.94

Finding the Fourth Proportional to 68,280.10, 102,451.11 and 30,819.94

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Solution

The fourth proportional to 68,280.10, 102,451.11 and 30,819.94 is: 46,243.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,280.10 : 102,451.11 = 30,819.94 : x
  2. Step 2: Convert to fraction form
    68,280.10/102,451.11 = 30,819.94/x
  3. Step 3: Cross multiply
    68,280.10x = 102,451.11 × 30,819.94
  4. Step 4: Simplify right side
    68,280.10x = 3,157,537,063.13
  5. Step 5: Solve for x
    x = 3,157,537,063.13/68,280.10
  6. Step 6: Final answer
    x = 46,243.88

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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.