Finding the Fourth Proportional to 67.49, 101.14 and 38.62
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Solution
The fourth proportional to 67.49, 101.14 and 38.62 is: 57.88
Step by Step Solution
- Step 1: Write the proportion equation
67.49 : 101.14 = 38.62 : x - Step 2: Convert to fraction form
67.49/101.14 = 38.62/x - Step 3: Cross multiply
67.49x = 101.14 × 38.62 - Step 4: Simplify right side
67.49x = 3,906.03 - Step 5: Solve for x
x = 3,906.03/67.49 - Step 6: Final answer
x = 57.88
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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.