Finding the Fourth Proportional to 86,584.30, 129,888.60 and 27,413.80
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Solution
The fourth proportional to 86,584.30, 129,888.60 and 27,413.80 is: 41,124.55
Step by Step Solution
- Step 1: Write the proportion equation
86,584.30 : 129,888.60 = 27,413.80 : x - Step 2: Convert to fraction form
86,584.30/129,888.60 = 27,413.80/x - Step 3: Cross multiply
86,584.30x = 129,888.60 × 27,413.80 - Step 4: Simplify right side
86,584.30x = 3,560,740,102.68 - Step 5: Solve for x
x = 3,560,740,102.68/86,584.30 - Step 6: Final answer
x = 41,124.55
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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.