Home / 54,292.12-81,418.21-18,744.41

Finding the Fourth Proportional to 54,292.12, 81,418.21 and 18,744.41

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Solution

The fourth proportional to 54,292.12, 81,418.21 and 18,744.41 is: 28,109.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,292.12 : 81,418.21 = 18,744.41 : x
  2. Step 2: Convert to fraction form
    54,292.12/81,418.21 = 18,744.41/x
  3. Step 3: Cross multiply
    54,292.12x = 81,418.21 × 18,744.41
  4. Step 4: Simplify right side
    54,292.12x = 1,526,136,571.83
  5. Step 5: Solve for x
    x = 1,526,136,571.83/54,292.12
  6. Step 6: Final answer
    x = 28,109.72

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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.