Finding the Fourth Proportional to 79.07, 118.58 and 27.70
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Solution
The fourth proportional to 79.07, 118.58 and 27.70 is: 41.54
Step by Step Solution
- Step 1: Write the proportion equation
79.07 : 118.58 = 27.70 : x - Step 2: Convert to fraction form
79.07/118.58 = 27.70/x - Step 3: Cross multiply
79.07x = 118.58 × 27.70 - Step 4: Simplify right side
79.07x = 3,284.23 - Step 5: Solve for x
x = 3,284.23/79.07 - Step 6: Final answer
x = 41.54
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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.