Finding the Fourth Proportional to 79.11, 118.65 and 24.99
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Solution
The fourth proportional to 79.11, 118.65 and 24.99 is: 37.48
Step by Step Solution
- Step 1: Write the proportion equation
79.11 : 118.65 = 24.99 : x - Step 2: Convert to fraction form
79.11/118.65 = 24.99/x - Step 3: Cross multiply
79.11x = 118.65 × 24.99 - Step 4: Simplify right side
79.11x = 2,965.24 - Step 5: Solve for x
x = 2,965.24/79.11 - Step 6: Final answer
x = 37.48
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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.