Home / 67,243.21-100,872.12-25,143.46

Finding the Fourth Proportional to 67,243.21, 100,872.12 and 25,143.46

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Solution

The fourth proportional to 67,243.21, 100,872.12 and 25,143.46 is: 37,717.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,243.21 : 100,872.12 = 25,143.46 : x
  2. Step 2: Convert to fraction form
    67,243.21/100,872.12 = 25,143.46/x
  3. Step 3: Cross multiply
    67,243.21x = 100,872.12 × 25,143.46
  4. Step 4: Simplify right side
    67,243.21x = 2,536,274,114.34
  5. Step 5: Solve for x
    x = 2,536,274,114.34/67,243.21
  6. Step 6: Final answer
    x = 37,717.92

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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.