Finding the Fourth Proportional to 79.92, 110.26 and 52.26
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Solution
The fourth proportional to 79.92, 110.26 and 52.26 is: 72.09
Step by Step Solution
- Step 1: Write the proportion equation
79.92 : 110.26 = 52.26 : x - Step 2: Convert to fraction form
79.92/110.26 = 52.26/x - Step 3: Cross multiply
79.92x = 110.26 × 52.26 - Step 4: Simplify right side
79.92x = 5,761.99 - Step 5: Solve for x
x = 5,761.99/79.92 - Step 6: Final answer
x = 72.09
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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.