Finding the Fourth Proportional to 80,388.28, 120,611.34 and 27,803.08
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Solution
The fourth proportional to 80,388.28, 120,611.34 and 27,803.08 is: 41,714.62
Step by Step Solution
- Step 1: Write the proportion equation
80,388.28 : 120,611.34 = 27,803.08 : x - Step 2: Convert to fraction form
80,388.28/120,611.34 = 27,803.08/x - Step 3: Cross multiply
80,388.28x = 120,611.34 × 27,803.08 - Step 4: Simplify right side
80,388.28x = 3,353,366,734.93 - Step 5: Solve for x
x = 3,353,366,734.93/80,388.28 - Step 6: Final answer
x = 41,714.62
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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.