Home / 68,341.20-102,540.60-37,198.80

Finding the Fourth Proportional to 68,341.20, 102,540.60 and 37,198.80

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Solution

The fourth proportional to 68,341.20, 102,540.60 and 37,198.80 is: 55,813.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,341.20 : 102,540.60 = 37,198.80 : x
  2. Step 2: Convert to fraction form
    68,341.20/102,540.60 = 37,198.80/x
  3. Step 3: Cross multiply
    68,341.20x = 102,540.60 × 37,198.80
  4. Step 4: Simplify right side
    68,341.20x = 3,814,387,271.28
  5. Step 5: Solve for x
    x = 3,814,387,271.28/68,341.20
  6. Step 6: Final answer
    x = 55,813.88

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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.