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Finding the Fourth Proportional to 70,598.06, 105,866 and 33,168.78

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Solution

The fourth proportional to 70,598.06, 105,866 and 33,168.78 is: 49,738.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,598.06 : 105,866 = 33,168.78 : x
  2. Step 2: Convert to fraction form
    70,598.06/105,866 = 33,168.78/x
  3. Step 3: Cross multiply
    70,598.06x = 105,866 × 33,168.78
  4. Step 4: Simplify right side
    70,598.06x = 3,511,446,063.48
  5. Step 5: Solve for x
    x = 3,511,446,063.48/70,598.06
  6. Step 6: Final answer
    x = 49,738.56

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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.