Finding the Fourth Proportional to 75,183.98, 103,706.97 and 48,361.46
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Solution
The fourth proportional to 75,183.98, 103,706.97 and 48,361.46 is: 66,708.63
Step by Step Solution
- Step 1: Write the proportion equation
75,183.98 : 103,706.97 = 48,361.46 : x - Step 2: Convert to fraction form
75,183.98/103,706.97 = 48,361.46/x - Step 3: Cross multiply
75,183.98x = 103,706.97 × 48,361.46 - Step 4: Simplify right side
75,183.98x = 5,015,420,481.38 - Step 5: Solve for x
x = 5,015,420,481.38/75,183.98 - Step 6: Final answer
x = 66,708.63
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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.