Home / 54,360.90-81,519.45-16,908.51

Finding the Fourth Proportional to 54,360.90, 81,519.45 and 16,908.51

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Solution

The fourth proportional to 54,360.90, 81,519.45 and 16,908.51 is: 25,355.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,360.90 : 81,519.45 = 16,908.51 : x
  2. Step 2: Convert to fraction form
    54,360.90/81,519.45 = 16,908.51/x
  3. Step 3: Cross multiply
    54,360.90x = 81,519.45 × 16,908.51
  4. Step 4: Simplify right side
    54,360.90x = 1,378,372,435.52
  5. Step 5: Solve for x
    x = 1,378,372,435.52/54,360.90
  6. Step 6: Final answer
    x = 25,355.95

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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.