Home / 54,604.49-81,857.94-21,316.79

Finding the Fourth Proportional to 54,604.49, 81,857.94 and 21,316.79

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Solution

The fourth proportional to 54,604.49, 81,857.94 and 21,316.79 is: 31,956.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,604.49 : 81,857.94 = 21,316.79 : x
  2. Step 2: Convert to fraction form
    54,604.49/81,857.94 = 21,316.79/x
  3. Step 3: Cross multiply
    54,604.49x = 81,857.94 × 21,316.79
  4. Step 4: Simplify right side
    54,604.49x = 1,744,948,107.52
  5. Step 5: Solve for x
    x = 1,744,948,107.52/54,604.49
  6. Step 6: Final answer
    x = 31,956.13

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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.