Finding the Fourth Proportional to 84.36, 126.48 and 32.99
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Solution
The fourth proportional to 84.36, 126.48 and 32.99 is: 49.45
Step by Step Solution
- Step 1: Write the proportion equation
84.36 : 126.48 = 32.99 : x - Step 2: Convert to fraction form
84.36/126.48 = 32.99/x - Step 3: Cross multiply
84.36x = 126.48 × 32.99 - Step 4: Simplify right side
84.36x = 4,171.94 - Step 5: Solve for x
x = 4,171.94/84.36 - Step 6: Final answer
x = 49.45
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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.