Home / 41,126.31-61,721.91-21,135.02

Finding the Fourth Proportional to 41,126.31, 61,721.91 and 21,135.02

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Solution

The fourth proportional to 41,126.31, 61,721.91 and 21,135.02 is: 31,719.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,126.31 : 61,721.91 = 21,135.02 : x
  2. Step 2: Convert to fraction form
    41,126.31/61,721.91 = 21,135.02/x
  3. Step 3: Cross multiply
    41,126.31x = 61,721.91 × 21,135.02
  4. Step 4: Simplify right side
    41,126.31x = 1,304,493,493.68
  5. Step 5: Solve for x
    x = 1,304,493,493.68/41,126.31
  6. Step 6: Final answer
    x = 31,719.20

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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.