Finding the Fourth Proportional to 86,855.82, 119,850.94 and 48,617.49
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Solution
The fourth proportional to 86,855.82, 119,850.94 and 48,617.49 is: 67,086.49
Step by Step Solution
- Step 1: Write the proportion equation
86,855.82 : 119,850.94 = 48,617.49 : x - Step 2: Convert to fraction form
86,855.82/119,850.94 = 48,617.49/x - Step 3: Cross multiply
86,855.82x = 119,850.94 × 48,617.49 - Step 4: Simplify right side
86,855.82x = 5,826,851,876.94 - Step 5: Solve for x
x = 5,826,851,876.94/86,855.82 - Step 6: Final answer
x = 67,086.49
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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.