Finding the Fourth Proportional to 67.62, 93.30 and 38.12
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Solution
The fourth proportional to 67.62, 93.30 and 38.12 is: 52.59
Step by Step Solution
- Step 1: Write the proportion equation
67.62 : 93.30 = 38.12 : x - Step 2: Convert to fraction form
67.62/93.30 = 38.12/x - Step 3: Cross multiply
67.62x = 93.30 × 38.12 - Step 4: Simplify right side
67.62x = 3,556.13 - Step 5: Solve for x
x = 3,556.13/67.62 - Step 6: Final answer
x = 52.59
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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.