Finding the Fourth Proportional to 80,544.87, 120,822.57 and 21,378.96
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Solution
The fourth proportional to 80,544.87, 120,822.57 and 21,378.96 is: 32,069.84
Step by Step Solution
- Step 1: Write the proportion equation
80,544.87 : 120,822.57 = 21,378.96 : x - Step 2: Convert to fraction form
80,544.87/120,822.57 = 21,378.96/x - Step 3: Cross multiply
80,544.87x = 120,822.57 × 21,378.96 - Step 4: Simplify right side
80,544.87x = 2,583,060,891.13 - Step 5: Solve for x
x = 2,583,060,891.13/80,544.87 - Step 6: Final answer
x = 32,069.84
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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.