Finding the Fourth Proportional to 84.08, 126.12 and 35.99
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Solution
The fourth proportional to 84.08, 126.12 and 35.99 is: 53.99
Step by Step Solution
- Step 1: Write the proportion equation
84.08 : 126.12 = 35.99 : x - Step 2: Convert to fraction form
84.08/126.12 = 35.99/x - Step 3: Cross multiply
84.08x = 126.12 × 35.99 - Step 4: Simplify right side
84.08x = 4,539.06 - Step 5: Solve for x
x = 4,539.06/84.08 - Step 6: Final answer
x = 53.99
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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.