Finding the Fourth Proportional to 62.96, 86.84 and 37.09
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Solution
The fourth proportional to 62.96, 86.84 and 37.09 is: 51.15
Step by Step Solution
- Step 1: Write the proportion equation
62.96 : 86.84 = 37.09 : x - Step 2: Convert to fraction form
62.96/86.84 = 37.09/x - Step 3: Cross multiply
62.96x = 86.84 × 37.09 - Step 4: Simplify right side
62.96x = 3,220.46 - Step 5: Solve for x
x = 3,220.46/62.96 - Step 6: Final answer
x = 51.15
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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.