Home / 54,581.32-81,871.98-15,138.44

Finding the Fourth Proportional to 54,581.32, 81,871.98 and 15,138.44

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Solution

The fourth proportional to 54,581.32, 81,871.98 and 15,138.44 is: 22,707.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,581.32 : 81,871.98 = 15,138.44 : x
  2. Step 2: Convert to fraction form
    54,581.32/81,871.98 = 15,138.44/x
  3. Step 3: Cross multiply
    54,581.32x = 81,871.98 × 15,138.44
  4. Step 4: Simplify right side
    54,581.32x = 1,239,414,056.91
  5. Step 5: Solve for x
    x = 1,239,414,056.91/54,581.32
  6. Step 6: Final answer
    x = 22,707.66

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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.