Finding the Fourth Proportional to 63.74, 87.99 and 41.92
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Solution
The fourth proportional to 63.74, 87.99 and 41.92 is: 57.86
Step by Step Solution
- Step 1: Write the proportion equation
63.74 : 87.99 = 41.92 : x - Step 2: Convert to fraction form
63.74/87.99 = 41.92/x - Step 3: Cross multiply
63.74x = 87.99 × 41.92 - Step 4: Simplify right side
63.74x = 3,688.10 - Step 5: Solve for x
x = 3,688.10/63.74 - Step 6: Final answer
x = 57.86
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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.