Finding the Fourth Proportional to 80.12, 119.68 and 58.26
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Solution
The fourth proportional to 80.12, 119.68 and 58.26 is: 87.03
Step by Step Solution
- Step 1: Write the proportion equation
80.12 : 119.68 = 58.26 : x - Step 2: Convert to fraction form
80.12/119.68 = 58.26/x - Step 3: Cross multiply
80.12x = 119.68 × 58.26 - Step 4: Simplify right side
80.12x = 6,972.41 - Step 5: Solve for x
x = 6,972.41/80.12 - Step 6: Final answer
x = 87.03
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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.