Finding the Fourth Proportional to 75,135.81, 103,687.42 and 41,603.97
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Solution
The fourth proportional to 75,135.81, 103,687.42 and 41,603.97 is: 57,413.48
Step by Step Solution
- Step 1: Write the proportion equation
75,135.81 : 103,687.42 = 41,603.97 : x - Step 2: Convert to fraction form
75,135.81/103,687.42 = 41,603.97/x - Step 3: Cross multiply
75,135.81x = 103,687.42 × 41,603.97 - Step 4: Simplify right side
75,135.81x = 4,313,808,311.06 - Step 5: Solve for x
x = 4,313,808,311.06/75,135.81 - Step 6: Final answer
x = 57,413.48
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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.