Finding the Fourth Proportional to 86,396.62, 119,212.88 and 48,147.79
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Solution
The fourth proportional to 86,396.62, 119,212.88 and 48,147.79 is: 66,435.89
Step by Step Solution
- Step 1: Write the proportion equation
86,396.62 : 119,212.88 = 48,147.79 : x - Step 2: Convert to fraction form
86,396.62/119,212.88 = 48,147.79/x - Step 3: Cross multiply
86,396.62x = 119,212.88 × 48,147.79 - Step 4: Simplify right side
86,396.62x = 5,739,836,711.54 - Step 5: Solve for x
x = 5,739,836,711.54/86,396.62 - Step 6: Final answer
x = 66,435.89
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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.