Home / 67,132.05-100,725.44-43,143.22

Finding the Fourth Proportional to 67,132.05, 100,725.44 and 43,143.22

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Solution

The fourth proportional to 67,132.05, 100,725.44 and 43,143.22 is: 64,732.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,132.05 : 100,725.44 = 43,143.22 : x
  2. Step 2: Convert to fraction form
    67,132.05/100,725.44 = 43,143.22/x
  3. Step 3: Cross multiply
    67,132.05x = 100,725.44 × 43,143.22
  4. Step 4: Simplify right side
    67,132.05x = 4,345,619,817.52
  5. Step 5: Solve for x
    x = 4,345,619,817.52/67,132.05
  6. Step 6: Final answer
    x = 64,732.42

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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.