Home / 82,356.03-123,513.38-31,744.90

Finding the Fourth Proportional to 82,356.03, 123,513.38 and 31,744.90

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Solution

The fourth proportional to 82,356.03, 123,513.38 and 31,744.90 is: 47,609.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,356.03 : 123,513.38 = 31,744.90 : x
  2. Step 2: Convert to fraction form
    82,356.03/123,513.38 = 31,744.90/x
  3. Step 3: Cross multiply
    82,356.03x = 123,513.38 × 31,744.90
  4. Step 4: Simplify right side
    82,356.03x = 3,920,919,896.76
  5. Step 5: Solve for x
    x = 3,920,919,896.76/82,356.03
  6. Step 6: Final answer
    x = 47,609.38

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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.