Finding the Fourth Proportional to 88,959.40, 122,765.49 and 48,676.68
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Solution
The fourth proportional to 88,959.40, 122,765.49 and 48,676.68 is: 67,174.65
Step by Step Solution
- Step 1: Write the proportion equation
88,959.40 : 122,765.49 = 48,676.68 : x - Step 2: Convert to fraction form
88,959.40/122,765.49 = 48,676.68/x - Step 3: Cross multiply
88,959.40x = 122,765.49 × 48,676.68 - Step 4: Simplify right side
88,959.40x = 5,975,816,471.77 - Step 5: Solve for x
x = 5,975,816,471.77/88,959.40 - Step 6: Final answer
x = 67,174.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.