Home / 67,121.20-100,693.94-27,656.36

Finding the Fourth Proportional to 67,121.20, 100,693.94 and 27,656.36

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Solution

The fourth proportional to 67,121.20, 100,693.94 and 27,656.36 is: 41,489.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,121.20 : 100,693.94 = 27,656.36 : x
  2. Step 2: Convert to fraction form
    67,121.20/100,693.94 = 27,656.36/x
  3. Step 3: Cross multiply
    67,121.20x = 100,693.94 × 27,656.36
  4. Step 4: Simplify right side
    67,121.20x = 2,784,827,854.46
  5. Step 5: Solve for x
    x = 2,784,827,854.46/67,121.20
  6. Step 6: Final answer
    x = 41,489.54

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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.