Home / 68,249.10-102,337.20-28,761.60

Finding the Fourth Proportional to 68,249.10, 102,337.20 and 28,761.60

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Solution

The fourth proportional to 68,249.10, 102,337.20 and 28,761.60 is: 43,127.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,249.10 : 102,337.20 = 28,761.60 : x
  2. Step 2: Convert to fraction form
    68,249.10/102,337.20 = 28,761.60/x
  3. Step 3: Cross multiply
    68,249.10x = 102,337.20 × 28,761.60
  4. Step 4: Simplify right side
    68,249.10x = 2,943,381,611.52
  5. Step 5: Solve for x
    x = 2,943,381,611.52/68,249.10
  6. Step 6: Final answer
    x = 43,127.04

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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.