Finding the Fourth Proportional to 80,480.18, 120,741.74 and 27,889.62
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Solution
The fourth proportional to 80,480.18, 120,741.74 and 27,889.62 is: 41,841.86
Step by Step Solution
- Step 1: Write the proportion equation
80,480.18 : 120,741.74 = 27,889.62 : x - Step 2: Convert to fraction form
80,480.18/120,741.74 = 27,889.62/x - Step 3: Cross multiply
80,480.18x = 120,741.74 × 27,889.62 - Step 4: Simplify right side
80,480.18x = 3,367,440,759.10 - Step 5: Solve for x
x = 3,367,440,759.10/80,480.18 - Step 6: Final answer
x = 41,841.86
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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.