Finding the Fourth Proportional to 84.99, 117.27 and 52.26
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Solution
The fourth proportional to 84.99, 117.27 and 52.26 is: 72.11
Step by Step Solution
- Step 1: Write the proportion equation
84.99 : 117.27 = 52.26 : x - Step 2: Convert to fraction form
84.99/117.27 = 52.26/x - Step 3: Cross multiply
84.99x = 117.27 × 52.26 - Step 4: Simplify right side
84.99x = 6,128.53 - Step 5: Solve for x
x = 6,128.53/84.99 - Step 6: Final answer
x = 72.11
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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.