Finding the Fourth Proportional to 85,413.48, 117,871.49 and 47,173.99
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Solution
The fourth proportional to 85,413.48, 117,871.49 and 47,173.99 is: 65,100.59
Step by Step Solution
- Step 1: Write the proportion equation
85,413.48 : 117,871.49 = 47,173.99 : x - Step 2: Convert to fraction form
85,413.48/117,871.49 = 47,173.99/x - Step 3: Cross multiply
85,413.48x = 117,871.49 × 47,173.99 - Step 4: Simplify right side
85,413.48x = 5,560,468,578.92 - Step 5: Solve for x
x = 5,560,468,578.92/85,413.48 - Step 6: Final answer
x = 65,100.59
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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.