Home / 54,078.62-81,120.81-16,664.39

Finding the Fourth Proportional to 54,078.62, 81,120.81 and 16,664.39

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Solution

The fourth proportional to 54,078.62, 81,120.81 and 16,664.39 is: 24,997.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,078.62 : 81,120.81 = 16,664.39 : x
  2. Step 2: Convert to fraction form
    54,078.62/81,120.81 = 16,664.39/x
  3. Step 3: Cross multiply
    54,078.62x = 81,120.81 × 16,664.39
  4. Step 4: Simplify right side
    54,078.62x = 1,351,828,409.35
  5. Step 5: Solve for x
    x = 1,351,828,409.35/54,078.62
  6. Step 6: Final answer
    x = 24,997.47

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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.