Home / 83,395.81-125,093.97-20,215.68

Finding the Fourth Proportional to 83,395.81, 125,093.97 and 20,215.68

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Solution

The fourth proportional to 83,395.81, 125,093.97 and 20,215.68 is: 30,323.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,395.81 : 125,093.97 = 20,215.68 : x
  2. Step 2: Convert to fraction form
    83,395.81/125,093.97 = 20,215.68/x
  3. Step 3: Cross multiply
    83,395.81x = 125,093.97 × 20,215.68
  4. Step 4: Simplify right side
    83,395.81x = 2,528,859,198.35
  5. Step 5: Solve for x
    x = 2,528,859,198.35/83,395.81
  6. Step 6: Final answer
    x = 30,323.58

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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.