Home / 54,016.20-81,024.30-31,872.83

Finding the Fourth Proportional to 54,016.20, 81,024.30 and 31,872.83

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Solution

The fourth proportional to 54,016.20, 81,024.30 and 31,872.83 is: 47,809.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,016.20 : 81,024.30 = 31,872.83 : x
  2. Step 2: Convert to fraction form
    54,016.20/81,024.30 = 31,872.83/x
  3. Step 3: Cross multiply
    54,016.20x = 81,024.30 × 31,872.83
  4. Step 4: Simplify right side
    54,016.20x = 2,582,473,334.65
  5. Step 5: Solve for x
    x = 2,582,473,334.65/54,016.20
  6. Step 6: Final answer
    x = 47,809.24

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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.