Finding the Fourth Proportional to 79, 118.36 and 58.68
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Solution
The fourth proportional to 79, 118.36 and 58.68 is: 87.92
Step by Step Solution
- Step 1: Write the proportion equation
79 : 118.36 = 58.68 : x - Step 2: Convert to fraction form
79/118.36 = 58.68/x - Step 3: Cross multiply
79x = 118.36 × 58.68 - Step 4: Simplify right side
79x = 6,945.36 - Step 5: Solve for x
x = 6,945.36/79 - Step 6: Final answer
x = 87.92
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.