Home / 67,213.29-100,834.94-20,469.77

Finding the Fourth Proportional to 67,213.29, 100,834.94 and 20,469.77

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Solution

The fourth proportional to 67,213.29, 100,834.94 and 20,469.77 is: 30,709.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,213.29 : 100,834.94 = 20,469.77 : x
  2. Step 2: Convert to fraction form
    67,213.29/100,834.94 = 20,469.77/x
  3. Step 3: Cross multiply
    67,213.29x = 100,834.94 × 20,469.77
  4. Step 4: Simplify right side
    67,213.29x = 2,064,067,927.41
  5. Step 5: Solve for x
    x = 2,064,067,927.41/67,213.29
  6. Step 6: Final answer
    x = 30,709.22

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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.