Home / 54,403.22-81,578.10-31,919.64

Finding the Fourth Proportional to 54,403.22, 81,578.10 and 31,919.64

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Solution

The fourth proportional to 54,403.22, 81,578.10 and 31,919.64 is: 47,863.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,403.22 : 81,578.10 = 31,919.64 : x
  2. Step 2: Convert to fraction form
    54,403.22/81,578.10 = 31,919.64/x
  3. Step 3: Cross multiply
    54,403.22x = 81,578.10 × 31,919.64
  4. Step 4: Simplify right side
    54,403.22x = 2,603,943,583.88
  5. Step 5: Solve for x
    x = 2,603,943,583.88/54,403.22
  6. Step 6: Final answer
    x = 47,863.78

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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.