Finding the Fourth Proportional to 84.68, 116.84 and 58.52
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Solution
The fourth proportional to 84.68, 116.84 and 58.52 is: 80.75
Step by Step Solution
- Step 1: Write the proportion equation
84.68 : 116.84 = 58.52 : x - Step 2: Convert to fraction form
84.68/116.84 = 58.52/x - Step 3: Cross multiply
84.68x = 116.84 × 58.52 - Step 4: Simplify right side
84.68x = 6,837.92 - Step 5: Solve for x
x = 6,837.92/84.68 - Step 6: Final answer
x = 80.75
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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.