Finding the Fourth Proportional to 84.07, 115.96 and 52.99
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Solution
The fourth proportional to 84.07, 115.96 and 52.99 is: 73.09
Step by Step Solution
- Step 1: Write the proportion equation
84.07 : 115.96 = 52.99 : x - Step 2: Convert to fraction form
84.07/115.96 = 52.99/x - Step 3: Cross multiply
84.07x = 115.96 × 52.99 - Step 4: Simplify right side
84.07x = 6,144.72 - Step 5: Solve for x
x = 6,144.72/84.07 - Step 6: Final answer
x = 73.09
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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.