Home / 54,375.45-81,539.86-29,408.72

Finding the Fourth Proportional to 54,375.45, 81,539.86 and 29,408.72

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Solution

The fourth proportional to 54,375.45, 81,539.86 and 29,408.72 is: 44,100.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,375.45 : 81,539.86 = 29,408.72 : x
  2. Step 2: Convert to fraction form
    54,375.45/81,539.86 = 29,408.72/x
  3. Step 3: Cross multiply
    54,375.45x = 81,539.86 × 29,408.72
  4. Step 4: Simplify right side
    54,375.45x = 2,397,982,911.58
  5. Step 5: Solve for x
    x = 2,397,982,911.58/54,375.45
  6. Step 6: Final answer
    x = 44,100.47

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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.