Finding the Fourth Proportional to 84.24, 126.17 and 49.95
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Solution
The fourth proportional to 84.24, 126.17 and 49.95 is: 74.81
Step by Step Solution
- Step 1: Write the proportion equation
84.24 : 126.17 = 49.95 : x - Step 2: Convert to fraction form
84.24/126.17 = 49.95/x - Step 3: Cross multiply
84.24x = 126.17 × 49.95 - Step 4: Simplify right side
84.24x = 6,302.19 - Step 5: Solve for x
x = 6,302.19/84.24 - Step 6: Final answer
x = 74.81
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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.