Home / 54,581.37-81,872.05-15,138.49

Finding the Fourth Proportional to 54,581.37, 81,872.05 and 15,138.49

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Solution

The fourth proportional to 54,581.37, 81,872.05 and 15,138.49 is: 22,707.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,581.37 : 81,872.05 = 15,138.49 : x
  2. Step 2: Convert to fraction form
    54,581.37/81,872.05 = 15,138.49/x
  3. Step 3: Cross multiply
    54,581.37x = 81,872.05 × 15,138.49
  4. Step 4: Simplify right side
    54,581.37x = 1,239,419,210.20
  5. Step 5: Solve for x
    x = 1,239,419,210.20/54,581.37
  6. Step 6: Final answer
    x = 22,707.73

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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.