Finding the Fourth Proportional to 51.48, 77.16 and 50.70
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Solution
The fourth proportional to 51.48, 77.16 and 50.70 is: 75.99
Step by Step Solution
- Step 1: Write the proportion equation
51.48 : 77.16 = 50.70 : x - Step 2: Convert to fraction form
51.48/77.16 = 50.70/x - Step 3: Cross multiply
51.48x = 77.16 × 50.70 - Step 4: Simplify right side
51.48x = 3,912.01 - Step 5: Solve for x
x = 3,912.01/51.48 - Step 6: Final answer
x = 75.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.