Home / 54,229.35-81,355.02-19,193.61

Finding the Fourth Proportional to 54,229.35, 81,355.02 and 19,193.61

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Solution

The fourth proportional to 54,229.35, 81,355.02 and 19,193.61 is: 28,794.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,229.35 : 81,355.02 = 19,193.61 : x
  2. Step 2: Convert to fraction form
    54,229.35/81,355.02 = 19,193.61/x
  3. Step 3: Cross multiply
    54,229.35x = 81,355.02 × 19,193.61
  4. Step 4: Simplify right side
    54,229.35x = 1,561,496,525.42
  5. Step 5: Solve for x
    x = 1,561,496,525.42/54,229.35
  6. Step 6: Final answer
    x = 28,794.31

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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.