Finding the Fourth Proportional to 75,135.12, 103,693.68 and 41,601.12
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Solution
The fourth proportional to 75,135.12, 103,693.68 and 41,601.12 is: 57,413.54
Step by Step Solution
- Step 1: Write the proportion equation
75,135.12 : 103,693.68 = 41,601.12 : x - Step 2: Convert to fraction form
75,135.12/103,693.68 = 41,601.12/x - Step 3: Cross multiply
75,135.12x = 103,693.68 × 41,601.12 - Step 4: Simplify right side
75,135.12x = 4,313,773,224.92 - Step 5: Solve for x
x = 4,313,773,224.92/75,135.12 - Step 6: Final answer
x = 57,413.54
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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.