Finding the Fourth Proportional to 62.44, 86.71 and 61.84
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Solution
The fourth proportional to 62.44, 86.71 and 61.84 is: 85.88
Step by Step Solution
- Step 1: Write the proportion equation
62.44 : 86.71 = 61.84 : x - Step 2: Convert to fraction form
62.44/86.71 = 61.84/x - Step 3: Cross multiply
62.44x = 86.71 × 61.84 - Step 4: Simplify right side
62.44x = 5,362.15 - Step 5: Solve for x
x = 5,362.15/62.44 - Step 6: Final answer
x = 85.88
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.