Home / 82,722.25-124,083.78-20,392.75

Finding the Fourth Proportional to 82,722.25, 124,083.78 and 20,392.75

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Solution

The fourth proportional to 82,722.25, 124,083.78 and 20,392.75 is: 30,589.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,722.25 : 124,083.78 = 20,392.75 : x
  2. Step 2: Convert to fraction form
    82,722.25/124,083.78 = 20,392.75/x
  3. Step 3: Cross multiply
    82,722.25x = 124,083.78 × 20,392.75
  4. Step 4: Simplify right side
    82,722.25x = 2,530,409,504.60
  5. Step 5: Solve for x
    x = 2,530,409,504.60/82,722.25
  6. Step 6: Final answer
    x = 30,589.22

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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.