Finding the Fourth Proportional to 75,855.65, 104,678.82 and 41,863.68
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Solution
The fourth proportional to 75,855.65, 104,678.82 and 41,863.68 is: 57,770.79
Step by Step Solution
- Step 1: Write the proportion equation
75,855.65 : 104,678.82 = 41,863.68 : x - Step 2: Convert to fraction form
75,855.65/104,678.82 = 41,863.68/x - Step 3: Cross multiply
75,855.65x = 104,678.82 × 41,863.68 - Step 4: Simplify right side
75,855.65x = 4,382,240,623.26 - Step 5: Solve for x
x = 4,382,240,623.26/75,855.65 - Step 6: Final answer
x = 57,770.79
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1.5x scale
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.