Home / 74,144.92-111,240.06-21,554.86

Finding the Fourth Proportional to 74,144.92, 111,240.06 and 21,554.86

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Solution

The fourth proportional to 74,144.92, 111,240.06 and 21,554.86 is: 32,338.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,144.92 : 111,240.06 = 21,554.86 : x
  2. Step 2: Convert to fraction form
    74,144.92/111,240.06 = 21,554.86/x
  3. Step 3: Cross multiply
    74,144.92x = 111,240.06 × 21,554.86
  4. Step 4: Simplify right side
    74,144.92x = 2,397,763,919.69
  5. Step 5: Solve for x
    x = 2,397,763,919.69/74,144.92
  6. Step 6: Final answer
    x = 32,338.88

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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.