Home / 75,321.23-103,942.38-43,489.44

Finding the Fourth Proportional to 75,321.23, 103,942.38 and 43,489.44

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Solution

The fourth proportional to 75,321.23, 103,942.38 and 43,489.44 is: 60,014.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,321.23 : 103,942.38 = 43,489.44 : x
  2. Step 2: Convert to fraction form
    75,321.23/103,942.38 = 43,489.44/x
  3. Step 3: Cross multiply
    75,321.23x = 103,942.38 × 43,489.44
  4. Step 4: Simplify right side
    75,321.23x = 4,520,395,898.47
  5. Step 5: Solve for x
    x = 4,520,395,898.47/75,321.23
  6. Step 6: Final answer
    x = 60,014.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.