Finding the Fourth Proportional to 50.67, 69.90 and 38.42
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Solution
The fourth proportional to 50.67, 69.90 and 38.42 is: 52.99
Step by Step Solution
- Step 1: Write the proportion equation
50.67 : 69.90 = 38.42 : x - Step 2: Convert to fraction form
50.67/69.90 = 38.42/x - Step 3: Cross multiply
50.67x = 69.90 × 38.42 - Step 4: Simplify right side
50.67x = 2,685.21 - Step 5: Solve for x
x = 2,685.21/50.67 - Step 6: Final answer
x = 52.99
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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.