Home / 54,345.98-81,537.21-21,067.13

Finding the Fourth Proportional to 54,345.98, 81,537.21 and 21,067.13

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Solution

The fourth proportional to 54,345.98, 81,537.21 and 21,067.13 is: 31,607.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,345.98 : 81,537.21 = 21,067.13 : x
  2. Step 2: Convert to fraction form
    54,345.98/81,537.21 = 21,067.13/x
  3. Step 3: Cross multiply
    54,345.98x = 81,537.21 × 21,067.13
  4. Step 4: Simplify right side
    54,345.98x = 1,717,755,206.75
  5. Step 5: Solve for x
    x = 1,717,755,206.75/54,345.98
  6. Step 6: Final answer
    x = 31,607.77

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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.