Home / 55,021.75-82,532.76-19,961.44

Finding the Fourth Proportional to 55,021.75, 82,532.76 and 19,961.44

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Solution

The fourth proportional to 55,021.75, 82,532.76 and 19,961.44 is: 29,942.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,021.75 : 82,532.76 = 19,961.44 : x
  2. Step 2: Convert to fraction form
    55,021.75/82,532.76 = 19,961.44/x
  3. Step 3: Cross multiply
    55,021.75x = 82,532.76 × 19,961.44
  4. Step 4: Simplify right side
    55,021.75x = 1,647,472,736.77
  5. Step 5: Solve for x
    x = 1,647,472,736.77/55,021.75
  6. Step 6: Final answer
    x = 29,942.21

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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.