Finding the Fourth Proportional to 60.82, 83.92 and 38.99
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Solution
The fourth proportional to 60.82, 83.92 and 38.99 is: 53.80
Step by Step Solution
- Step 1: Write the proportion equation
60.82 : 83.92 = 38.99 : x - Step 2: Convert to fraction form
60.82/83.92 = 38.99/x - Step 3: Cross multiply
60.82x = 83.92 × 38.99 - Step 4: Simplify right side
60.82x = 3,272.04 - Step 5: Solve for x
x = 3,272.04/60.82 - Step 6: Final answer
x = 53.80
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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.