Finding the Fourth Proportional to 73.67, 110.52 and 28.06
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Solution
The fourth proportional to 73.67, 110.52 and 28.06 is: 42.09
Step by Step Solution
- Step 1: Write the proportion equation
73.67 : 110.52 = 28.06 : x - Step 2: Convert to fraction form
73.67/110.52 = 28.06/x - Step 3: Cross multiply
73.67x = 110.52 × 28.06 - Step 4: Simplify right side
73.67x = 3,100.91 - Step 5: Solve for x
x = 3,100.91/73.67 - Step 6: Final answer
x = 42.09
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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.