Finding the Fourth Proportional to 81,413.20, 122,137.22 and 25,252.08
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Solution
The fourth proportional to 81,413.20, 122,137.22 and 25,252.08 is: 37,883.52
Step by Step Solution
- Step 1: Write the proportion equation
81,413.20 : 122,137.22 = 25,252.08 : x - Step 2: Convert to fraction form
81,413.20/122,137.22 = 25,252.08/x - Step 3: Cross multiply
81,413.20x = 122,137.22 × 25,252.08 - Step 4: Simplify right side
81,413.20x = 3,084,218,850.42 - Step 5: Solve for x
x = 3,084,218,850.42/81,413.20 - Step 6: Final answer
x = 37,883.52
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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.