Finding the Fourth Proportional to 47.82, 65.99 and 25.99
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Solution
The fourth proportional to 47.82, 65.99 and 25.99 is: 35.86
Step by Step Solution
- Step 1: Write the proportion equation
47.82 : 65.99 = 25.99 : x - Step 2: Convert to fraction form
47.82/65.99 = 25.99/x - Step 3: Cross multiply
47.82x = 65.99 × 25.99 - Step 4: Simplify right side
47.82x = 1,715.03 - Step 5: Solve for x
x = 1,715.03/47.82 - Step 6: Final answer
x = 35.86
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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.