Finding the Fourth Proportional to 79.24, 118.82 and 63.66
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Solution
The fourth proportional to 79.24, 118.82 and 63.66 is: 95.46
Step by Step Solution
- Step 1: Write the proportion equation
79.24 : 118.82 = 63.66 : x - Step 2: Convert to fraction form
79.24/118.82 = 63.66/x - Step 3: Cross multiply
79.24x = 118.82 × 63.66 - Step 4: Simplify right side
79.24x = 7,564.08 - Step 5: Solve for x
x = 7,564.08/79.24 - Step 6: Final answer
x = 95.46
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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.