Finding the Fourth Proportional to 87,379.82, 120,582.69 and 48,616.14
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Solution
The fourth proportional to 87,379.82, 120,582.69 and 48,616.14 is: 67,089.46
Step by Step Solution
- Step 1: Write the proportion equation
87,379.82 : 120,582.69 = 48,616.14 : x - Step 2: Convert to fraction form
87,379.82/120,582.69 = 48,616.14/x - Step 3: Cross multiply
87,379.82x = 120,582.69 × 48,616.14 - Step 4: Simplify right side
87,379.82x = 5,862,264,938.62 - Step 5: Solve for x
x = 5,862,264,938.62/87,379.82 - Step 6: Final answer
x = 67,089.46
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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.