Finding the Fourth Proportional to 78,175.68, 107,888.16 and 44,640.96
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Solution
The fourth proportional to 78,175.68, 107,888.16 and 44,640.96 is: 61,607.79
Step by Step Solution
- Step 1: Write the proportion equation
78,175.68 : 107,888.16 = 44,640.96 : x - Step 2: Convert to fraction form
78,175.68/107,888.16 = 44,640.96/x - Step 3: Cross multiply
78,175.68x = 107,888.16 × 44,640.96 - Step 4: Simplify right side
78,175.68x = 4,816,231,035.03 - Step 5: Solve for x
x = 4,816,231,035.03/78,175.68 - Step 6: Final answer
x = 61,607.79
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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.