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Finding the Fourth Proportional to 50,910, 76,366.44 and 13,974

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Solution

The fourth proportional to 50,910, 76,366.44 and 13,974 is: 20,961.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,910 : 76,366.44 = 13,974 : x
  2. Step 2: Convert to fraction form
    50,910/76,366.44 = 13,974/x
  3. Step 3: Cross multiply
    50,910x = 76,366.44 × 13,974
  4. Step 4: Simplify right side
    50,910x = 1,067,144,632.56
  5. Step 5: Solve for x
    x = 1,067,144,632.56/50,910
  6. Step 6: Final answer
    x = 20,961.40

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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.