Home / 54,456.48-81,653.01-21,137.62

Finding the Fourth Proportional to 54,456.48, 81,653.01 and 21,137.62

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Solution

The fourth proportional to 54,456.48, 81,653.01 and 21,137.62 is: 31,694.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,456.48 : 81,653.01 = 21,137.62 : x
  2. Step 2: Convert to fraction form
    54,456.48/81,653.01 = 21,137.62/x
  3. Step 3: Cross multiply
    54,456.48x = 81,653.01 × 21,137.62
  4. Step 4: Simplify right side
    54,456.48x = 1,725,950,297.24
  5. Step 5: Solve for x
    x = 1,725,950,297.24/54,456.48
  6. Step 6: Final answer
    x = 31,694.12

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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.