Finding the Fourth Proportional to 79.67, 119.05 and 48.99
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Solution
The fourth proportional to 79.67, 119.05 and 48.99 is: 73.21
Step by Step Solution
- Step 1: Write the proportion equation
79.67 : 119.05 = 48.99 : x - Step 2: Convert to fraction form
79.67/119.05 = 48.99/x - Step 3: Cross multiply
79.67x = 119.05 × 48.99 - Step 4: Simplify right side
79.67x = 5,832.26 - Step 5: Solve for x
x = 5,832.26/79.67 - Step 6: Final answer
x = 73.21
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.