Finding the Fourth Proportional to 75,205.88, 112,690.16 and 27,755.68
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Solution
The fourth proportional to 75,205.88, 112,690.16 and 27,755.68 is: 41,589.72
Step by Step Solution
- Step 1: Write the proportion equation
75,205.88 : 112,690.16 = 27,755.68 : x - Step 2: Convert to fraction form
75,205.88/112,690.16 = 27,755.68/x - Step 3: Cross multiply
75,205.88x = 112,690.16 × 27,755.68 - Step 4: Simplify right side
75,205.88x = 3,127,791,599.61 - Step 5: Solve for x
x = 3,127,791,599.61/75,205.88 - Step 6: Final answer
x = 41,589.72
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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.