Finding the Fourth Proportional to 80,996.55, 121,549.05 and 33,611.68
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Solution
The fourth proportional to 80,996.55, 121,549.05 and 33,611.68 is: 50,440.03
Step by Step Solution
- Step 1: Write the proportion equation
80,996.55 : 121,549.05 = 33,611.68 : x - Step 2: Convert to fraction form
80,996.55/121,549.05 = 33,611.68/x - Step 3: Cross multiply
80,996.55x = 121,549.05 × 33,611.68 - Step 4: Simplify right side
80,996.55x = 4,085,468,296.24 - Step 5: Solve for x
x = 4,085,468,296.24/80,996.55 - Step 6: Final answer
x = 50,440.03
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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.