Finding the Fourth Proportional to 50.99, 70.25 and 42.75
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Solution
The fourth proportional to 50.99, 70.25 and 42.75 is: 58.90
Step by Step Solution
- Step 1: Write the proportion equation
50.99 : 70.25 = 42.75 : x - Step 2: Convert to fraction form
50.99/70.25 = 42.75/x - Step 3: Cross multiply
50.99x = 70.25 × 42.75 - Step 4: Simplify right side
50.99x = 3,002.97 - Step 5: Solve for x
x = 3,002.97/50.99 - Step 6: Final answer
x = 58.90
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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.