Home / 54,192.99-81,315.41-19,149.15

Finding the Fourth Proportional to 54,192.99, 81,315.41 and 19,149.15

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Solution

The fourth proportional to 54,192.99, 81,315.41 and 19,149.15 is: 28,732.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,192.99 : 81,315.41 = 19,149.15 : x
  2. Step 2: Convert to fraction form
    54,192.99/81,315.41 = 19,149.15/x
  3. Step 3: Cross multiply
    54,192.99x = 81,315.41 × 19,149.15
  4. Step 4: Simplify right side
    54,192.99x = 1,557,120,887.66
  5. Step 5: Solve for x
    x = 1,557,120,887.66/54,192.99
  6. Step 6: Final answer
    x = 28,732.88

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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.