Finding the Fourth Proportional to 71,596.32, 107,413.92 and 21,678.09
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Solution
The fourth proportional to 71,596.32, 107,413.92 and 21,678.09 is: 32,523.02
Step by Step Solution
- Step 1: Write the proportion equation
71,596.32 : 107,413.92 = 21,678.09 : x - Step 2: Convert to fraction form
71,596.32/107,413.92 = 21,678.09/x - Step 3: Cross multiply
71,596.32x = 107,413.92 × 21,678.09 - Step 4: Simplify right side
71,596.32x = 2,328,528,625.01 - Step 5: Solve for x
x = 2,328,528,625.01/71,596.32 - Step 6: Final answer
x = 32,523.02
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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.