Finding the Fourth Proportional to 63.62, 87.80 and 35.99
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Solution
The fourth proportional to 63.62, 87.80 and 35.99 is: 49.67
Step by Step Solution
- Step 1: Write the proportion equation
63.62 : 87.80 = 35.99 : x - Step 2: Convert to fraction form
63.62/87.80 = 35.99/x - Step 3: Cross multiply
63.62x = 87.80 × 35.99 - Step 4: Simplify right side
63.62x = 3,160.03 - Step 5: Solve for x
x = 3,160.03/63.62 - Step 6: Final answer
x = 49.67
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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.