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Finding the Fourth Proportional to 70,540.36, 105,770.42 and 54,524.22

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Solution

The fourth proportional to 70,540.36, 105,770.42 and 54,524.22 is: 81,755.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,540.36 : 105,770.42 = 54,524.22 : x
  2. Step 2: Convert to fraction form
    70,540.36/105,770.42 = 54,524.22/x
  3. Step 3: Cross multiply
    70,540.36x = 105,770.42 × 54,524.22
  4. Step 4: Simplify right side
    70,540.36x = 5,767,049,649.57
  5. Step 5: Solve for x
    x = 5,767,049,649.57/70,540.36
  6. Step 6: Final answer
    x = 81,755.32

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.