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Finding the Fourth Proportional to 50,910.62, 76,376.97 and 21,313.22

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Solution

The fourth proportional to 50,910.62, 76,376.97 and 21,313.22 is: 31,974.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,910.62 : 76,376.97 = 21,313.22 : x
  2. Step 2: Convert to fraction form
    50,910.62/76,376.97 = 21,313.22/x
  3. Step 3: Cross multiply
    50,910.62x = 76,376.97 × 21,313.22
  4. Step 4: Simplify right side
    50,910.62x = 1,627,839,164.54
  5. Step 5: Solve for x
    x = 1,627,839,164.54/50,910.62
  6. Step 6: Final answer
    x = 31,974.45

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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.