Finding the Fourth Proportional to 42.60, 63.82 and 34.99
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Solution
The fourth proportional to 42.60, 63.82 and 34.99 is: 52.42
Step by Step Solution
- Step 1: Write the proportion equation
42.60 : 63.82 = 34.99 : x - Step 2: Convert to fraction form
42.60/63.82 = 34.99/x - Step 3: Cross multiply
42.60x = 63.82 × 34.99 - Step 4: Simplify right side
42.60x = 2,233.06 - Step 5: Solve for x
x = 2,233.06/42.60 - Step 6: Final answer
x = 52.42
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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.