Home / 67,218.24-100,772.28-27,803.64

Finding the Fourth Proportional to 67,218.24, 100,772.28 and 27,803.64

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Solution

The fourth proportional to 67,218.24, 100,772.28 and 27,803.64 is: 41,682.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,218.24 : 100,772.28 = 27,803.64 : x
  2. Step 2: Convert to fraction form
    67,218.24/100,772.28 = 27,803.64/x
  3. Step 3: Cross multiply
    67,218.24x = 100,772.28 × 27,803.64
  4. Step 4: Simplify right side
    67,218.24x = 2,801,836,195.10
  5. Step 5: Solve for x
    x = 2,801,836,195.10/67,218.24
  6. Step 6: Final answer
    x = 41,682.68

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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.