Home / 67,128.90-100,704.24-22,136.82

Finding the Fourth Proportional to 67,128.90, 100,704.24 and 22,136.82

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Solution

The fourth proportional to 67,128.90, 100,704.24 and 22,136.82 is: 33,208.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,128.90 : 100,704.24 = 22,136.82 : x
  2. Step 2: Convert to fraction form
    67,128.90/100,704.24 = 22,136.82/x
  3. Step 3: Cross multiply
    67,128.90x = 100,704.24 × 22,136.82
  4. Step 4: Simplify right side
    67,128.90x = 2,229,271,634.12
  5. Step 5: Solve for x
    x = 2,229,271,634.12/67,128.90
  6. Step 6: Final answer
    x = 33,208.82

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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.