Finding the Fourth Proportional to 50.09, 69.12 and 28.25
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Solution
The fourth proportional to 50.09, 69.12 and 28.25 is: 38.99
Step by Step Solution
- Step 1: Write the proportion equation
50.09 : 69.12 = 28.25 : x - Step 2: Convert to fraction form
50.09/69.12 = 28.25/x - Step 3: Cross multiply
50.09x = 69.12 × 28.25 - Step 4: Simplify right side
50.09x = 1,952.92 - Step 5: Solve for x
x = 1,952.92/50.09 - Step 6: Final answer
x = 38.99
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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.