Home / 82,121.73-123,163.76-22,961.56

Finding the Fourth Proportional to 82,121.73, 123,163.76 and 22,961.56

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Solution

The fourth proportional to 82,121.73, 123,163.76 and 22,961.56 is: 34,437.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,121.73 : 123,163.76 = 22,961.56 : x
  2. Step 2: Convert to fraction form
    82,121.73/123,163.76 = 22,961.56/x
  3. Step 3: Cross multiply
    82,121.73x = 123,163.76 × 22,961.56
  4. Step 4: Simplify right side
    82,121.73x = 2,828,031,814.56
  5. Step 5: Solve for x
    x = 2,828,031,814.56/82,121.73
  6. Step 6: Final answer
    x = 34,437.07

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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.