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Finding the Fourth Proportional to 50,660.80, 75,991.12 and 13,724.80

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Solution

The fourth proportional to 50,660.80, 75,991.12 and 13,724.80 is: 20,587.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,660.80 : 75,991.12 = 13,724.80 : x
  2. Step 2: Convert to fraction form
    50,660.80/75,991.12 = 13,724.80/x
  3. Step 3: Cross multiply
    50,660.80x = 75,991.12 × 13,724.80
  4. Step 4: Simplify right side
    50,660.80x = 1,042,962,923.78
  5. Step 5: Solve for x
    x = 1,042,962,923.78/50,660.80
  6. Step 6: Final answer
    x = 20,587.18

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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.