Finding the Fourth Proportional to 74,571.21, 111,874.34 and 24,651.31
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Solution
The fourth proportional to 74,571.21, 111,874.34 and 24,651.31 is: 36,982.75
Step by Step Solution
- Step 1: Write the proportion equation
74,571.21 : 111,874.34 = 24,651.31 : x - Step 2: Convert to fraction form
74,571.21/111,874.34 = 24,651.31/x - Step 3: Cross multiply
74,571.21x = 111,874.34 × 24,651.31 - Step 4: Simplify right side
74,571.21x = 2,757,848,633.44 - Step 5: Solve for x
x = 2,757,848,633.44/74,571.21 - Step 6: Final answer
x = 36,982.75
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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.