Finding the Fourth Proportional to 75,858.62, 113,857.79 and 38,444.85
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Solution
The fourth proportional to 75,858.62, 113,857.79 and 38,444.85 is: 57,702.68
Step by Step Solution
- Step 1: Write the proportion equation
75,858.62 : 113,857.79 = 38,444.85 : x - Step 2: Convert to fraction form
75,858.62/113,857.79 = 38,444.85/x - Step 3: Cross multiply
75,858.62x = 113,857.79 × 38,444.85 - Step 4: Simplify right side
75,858.62x = 4,377,245,465.66 - Step 5: Solve for x
x = 4,377,245,465.66/75,858.62 - Step 6: Final answer
x = 57,702.68
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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.