Home / 54,138.68-81,212.12-14,698.87

Finding the Fourth Proportional to 54,138.68, 81,212.12 and 14,698.87

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Solution

The fourth proportional to 54,138.68, 81,212.12 and 14,698.87 is: 22,049.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,138.68 : 81,212.12 = 14,698.87 : x
  2. Step 2: Convert to fraction form
    54,138.68/81,212.12 = 14,698.87/x
  3. Step 3: Cross multiply
    54,138.68x = 81,212.12 × 14,698.87
  4. Step 4: Simplify right side
    54,138.68x = 1,193,726,172.90
  5. Step 5: Solve for x
    x = 1,193,726,172.90/54,138.68
  6. Step 6: Final answer
    x = 22,049.41

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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.