Finding the Fourth Proportional to 80.52, 110.99 and 62.99
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Solution
The fourth proportional to 80.52, 110.99 and 62.99 is: 86.83
Step by Step Solution
- Step 1: Write the proportion equation
80.52 : 110.99 = 62.99 : x - Step 2: Convert to fraction form
80.52/110.99 = 62.99/x - Step 3: Cross multiply
80.52x = 110.99 × 62.99 - Step 4: Simplify right side
80.52x = 6,991.70 - Step 5: Solve for x
x = 6,991.70/80.52 - Step 6: Final answer
x = 86.83
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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.