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Finding the Fourth Proportional to 80,409.54, 110,928.78 and 50,202.35

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Solution

The fourth proportional to 80,409.54, 110,928.78 and 50,202.35 is: 69,256.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,409.54 : 110,928.78 = 50,202.35 : x
  2. Step 2: Convert to fraction form
    80,409.54/110,928.78 = 50,202.35/x
  3. Step 3: Cross multiply
    80,409.54x = 110,928.78 × 50,202.35
  4. Step 4: Simplify right side
    80,409.54x = 5,568,885,438.63
  5. Step 5: Solve for x
    x = 5,568,885,438.63/80,409.54
  6. Step 6: Final answer
    x = 69,256.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.