Finding the Fourth Proportional to 79.21, 118.82 and 44.99
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Solution
The fourth proportional to 79.21, 118.82 and 44.99 is: 67.48
Step by Step Solution
- Step 1: Write the proportion equation
79.21 : 118.82 = 44.99 : x - Step 2: Convert to fraction form
79.21/118.82 = 44.99/x - Step 3: Cross multiply
79.21x = 118.82 × 44.99 - Step 4: Simplify right side
79.21x = 5,345.23 - Step 5: Solve for x
x = 5,345.23/79.21 - Step 6: Final answer
x = 67.48
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Similar ratio
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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.