Finding the Fourth Proportional to 80,765.68, 121,129.68 and 30,827.44
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Solution
The fourth proportional to 80,765.68, 121,129.68 and 30,827.44 is: 46,233.97
Step by Step Solution
- Step 1: Write the proportion equation
80,765.68 : 121,129.68 = 30,827.44 : x - Step 2: Convert to fraction form
80,765.68/121,129.68 = 30,827.44/x - Step 3: Cross multiply
80,765.68x = 121,129.68 × 30,827.44 - Step 4: Simplify right side
80,765.68x = 3,734,117,942.42 - Step 5: Solve for x
x = 3,734,117,942.42/80,765.68 - Step 6: Final answer
x = 46,233.97
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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.