Finding the Fourth Proportional to 50.44, 69.62 and 28.62
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Solution
The fourth proportional to 50.44, 69.62 and 28.62 is: 39.50
Step by Step Solution
- Step 1: Write the proportion equation
50.44 : 69.62 = 28.62 : x - Step 2: Convert to fraction form
50.44/69.62 = 28.62/x - Step 3: Cross multiply
50.44x = 69.62 × 28.62 - Step 4: Simplify right side
50.44x = 1,992.52 - Step 5: Solve for x
x = 1,992.52/50.44 - Step 6: Final answer
x = 39.50
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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.