Finding the Fourth Proportional to 63.81, 95.61 and 36.70
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Solution
The fourth proportional to 63.81, 95.61 and 36.70 is: 54.99
Step by Step Solution
- Step 1: Write the proportion equation
63.81 : 95.61 = 36.70 : x - Step 2: Convert to fraction form
63.81/95.61 = 36.70/x - Step 3: Cross multiply
63.81x = 95.61 × 36.70 - Step 4: Simplify right side
63.81x = 3,509.01 - Step 5: Solve for x
x = 3,509.01/63.81 - Step 6: Final answer
x = 54.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.