Finding the Fourth Proportional to 80.55, 110.94 and 58.68
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Solution
The fourth proportional to 80.55, 110.94 and 58.68 is: 80.82
Step by Step Solution
- Step 1: Write the proportion equation
80.55 : 110.94 = 58.68 : x - Step 2: Convert to fraction form
80.55/110.94 = 58.68/x - Step 3: Cross multiply
80.55x = 110.94 × 58.68 - Step 4: Simplify right side
80.55x = 6,509.96 - Step 5: Solve for x
x = 6,509.96/80.55 - Step 6: Final answer
x = 80.82
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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.