Finding the Fourth Proportional to 80,121.24, 110,581.18 and 48,290.18
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Solution
The fourth proportional to 80,121.24, 110,581.18 and 48,290.18 is: 66,648.80
Step by Step Solution
- Step 1: Write the proportion equation
80,121.24 : 110,581.18 = 48,290.18 : x - Step 2: Convert to fraction form
80,121.24/110,581.18 = 48,290.18/x - Step 3: Cross multiply
80,121.24x = 110,581.18 × 48,290.18 - Step 4: Simplify right side
80,121.24x = 5,339,984,413.18 - Step 5: Solve for x
x = 5,339,984,413.18/80,121.24 - Step 6: Final answer
x = 66,648.80
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1.5x scale
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.