Finding the Fourth Proportional to 79.44, 119.34 and 52.44
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Solution
The fourth proportional to 79.44, 119.34 and 52.44 is: 78.78
Step by Step Solution
- Step 1: Write the proportion equation
79.44 : 119.34 = 52.44 : x - Step 2: Convert to fraction form
79.44/119.34 = 52.44/x - Step 3: Cross multiply
79.44x = 119.34 × 52.44 - Step 4: Simplify right side
79.44x = 6,258.19 - Step 5: Solve for x
x = 6,258.19/79.44 - Step 6: Final answer
x = 78.78
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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.