Home / 54,721.18-82,085.82-19,661.14

Finding the Fourth Proportional to 54,721.18, 82,085.82 and 19,661.14

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Solution

The fourth proportional to 54,721.18, 82,085.82 and 19,661.14 is: 29,493.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,721.18 : 82,085.82 = 19,661.14 : x
  2. Step 2: Convert to fraction form
    54,721.18/82,085.82 = 19,661.14/x
  3. Step 3: Cross multiply
    54,721.18x = 82,085.82 × 19,661.14
  4. Step 4: Simplify right side
    54,721.18x = 1,613,900,799.03
  5. Step 5: Solve for x
    x = 1,613,900,799.03/54,721.18
  6. Step 6: Final answer
    x = 29,493.17

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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.