Finding the Fourth Proportional to 80,532.42, 120,256.28 and 65,770.62
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Solution
The fourth proportional to 80,532.42, 120,256.28 and 65,770.62 is: 98,212.99
Step by Step Solution
- Step 1: Write the proportion equation
80,532.42 : 120,256.28 = 65,770.62 : x - Step 2: Convert to fraction form
80,532.42/120,256.28 = 65,770.62/x - Step 3: Cross multiply
80,532.42x = 120,256.28 × 65,770.62 - Step 4: Simplify right side
80,532.42x = 7,909,329,765.64 - Step 5: Solve for x
x = 7,909,329,765.64/80,532.42 - Step 6: Final answer
x = 98,212.99
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.