Home / 54,718.30-82,016.70-21,427.30

Finding the Fourth Proportional to 54,718.30, 82,016.70 and 21,427.30

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Solution

The fourth proportional to 54,718.30, 82,016.70 and 21,427.30 is: 32,117.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,718.30 : 82,016.70 = 21,427.30 : x
  2. Step 2: Convert to fraction form
    54,718.30/82,016.70 = 21,427.30/x
  3. Step 3: Cross multiply
    54,718.30x = 82,016.70 × 21,427.30
  4. Step 4: Simplify right side
    54,718.30x = 1,757,396,435.91
  5. Step 5: Solve for x
    x = 1,757,396,435.91/54,718.30
  6. Step 6: Final answer
    x = 32,117.16

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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.