Finding the Fourth Proportional to 84.24, 116.19 and 52.70
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Solution
The fourth proportional to 84.24, 116.19 and 52.70 is: 72.68
Step by Step Solution
- Step 1: Write the proportion equation
84.24 : 116.19 = 52.70 : x - Step 2: Convert to fraction form
84.24/116.19 = 52.70/x - Step 3: Cross multiply
84.24x = 116.19 × 52.70 - Step 4: Simplify right side
84.24x = 6,122.63 - Step 5: Solve for x
x = 6,122.63/84.24 - Step 6: Final answer
x = 72.68
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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.