Finding the Fourth Proportional to 77.37, 115.93 and 58.08
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Solution
The fourth proportional to 77.37, 115.93 and 58.08 is: 87.03
Step by Step Solution
- Step 1: Write the proportion equation
77.37 : 115.93 = 58.08 : x - Step 2: Convert to fraction form
77.37/115.93 = 58.08/x - Step 3: Cross multiply
77.37x = 115.93 × 58.08 - Step 4: Simplify right side
77.37x = 6,733.21 - Step 5: Solve for x
x = 6,733.21/77.37 - Step 6: Final answer
x = 87.03
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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.