Home / 72,785.38-109,178.06-20,194.84

Finding the Fourth Proportional to 72,785.38, 109,178.06 and 20,194.84

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Solution

The fourth proportional to 72,785.38, 109,178.06 and 20,194.84 is: 30,292.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,785.38 : 109,178.06 = 20,194.84 : x
  2. Step 2: Convert to fraction form
    72,785.38/109,178.06 = 20,194.84/x
  3. Step 3: Cross multiply
    72,785.38x = 109,178.06 × 20,194.84
  4. Step 4: Simplify right side
    72,785.38x = 2,204,833,453.21
  5. Step 5: Solve for x
    x = 2,204,833,453.21/72,785.38
  6. Step 6: Final answer
    x = 30,292.26

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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.