Home / 54,421.92-81,601.45-21,103.06

Finding the Fourth Proportional to 54,421.92, 81,601.45 and 21,103.06

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Solution

The fourth proportional to 54,421.92, 81,601.45 and 21,103.06 is: 31,642.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,421.92 : 81,601.45 = 21,103.06 : x
  2. Step 2: Convert to fraction form
    54,421.92/81,601.45 = 21,103.06/x
  3. Step 3: Cross multiply
    54,421.92x = 81,601.45 × 21,103.06
  4. Step 4: Simplify right side
    54,421.92x = 1,722,040,295.44
  5. Step 5: Solve for x
    x = 1,722,040,295.44/54,421.92
  6. Step 6: Final answer
    x = 31,642.40

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1.5x scale

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.