Home / 54,279.78-81,431.32-16,839.06

Finding the Fourth Proportional to 54,279.78, 81,431.32 and 16,839.06

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Solution

The fourth proportional to 54,279.78, 81,431.32 and 16,839.06 is: 25,262.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,279.78 : 81,431.32 = 16,839.06 : x
  2. Step 2: Convert to fraction form
    54,279.78/81,431.32 = 16,839.06/x
  3. Step 3: Cross multiply
    54,279.78x = 81,431.32 × 16,839.06
  4. Step 4: Simplify right side
    54,279.78x = 1,371,226,883.36
  5. Step 5: Solve for x
    x = 1,371,226,883.36/54,279.78
  6. Step 6: Final answer
    x = 25,262.20

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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.