Finding the Fourth Proportional to 71,809.80, 107,714.70 and 27,413.70
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Solution
The fourth proportional to 71,809.80, 107,714.70 and 27,413.70 is: 41,120.55
Step by Step Solution
- Step 1: Write the proportion equation
71,809.80 : 107,714.70 = 27,413.70 : x - Step 2: Convert to fraction form
71,809.80/107,714.70 = 27,413.70/x - Step 3: Cross multiply
71,809.80x = 107,714.70 × 27,413.70 - Step 4: Simplify right side
71,809.80x = 2,952,858,471.39 - Step 5: Solve for x
x = 2,952,858,471.39/71,809.80 - Step 6: Final answer
x = 41,120.55
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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.