Home / 82,212.47-123,318.77-19,882.97

Finding the Fourth Proportional to 82,212.47, 123,318.77 and 19,882.97

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Solution

The fourth proportional to 82,212.47, 123,318.77 and 19,882.97 is: 29,824.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,212.47 : 123,318.77 = 19,882.97 : x
  2. Step 2: Convert to fraction form
    82,212.47/123,318.77 = 19,882.97/x
  3. Step 3: Cross multiply
    82,212.47x = 123,318.77 × 19,882.97
  4. Step 4: Simplify right side
    82,212.47x = 2,451,942,688.34
  5. Step 5: Solve for x
    x = 2,451,942,688.34/82,212.47
  6. Step 6: Final answer
    x = 29,824.46

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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.