Finding the Fourth Proportional to 58.64, 87.97 and 28.21
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Solution
The fourth proportional to 58.64, 87.97 and 28.21 is: 42.32
Step by Step Solution
- Step 1: Write the proportion equation
58.64 : 87.97 = 28.21 : x - Step 2: Convert to fraction form
58.64/87.97 = 28.21/x - Step 3: Cross multiply
58.64x = 87.97 × 28.21 - Step 4: Simplify right side
58.64x = 2,481.49 - Step 5: Solve for x
x = 2,481.49/58.64 - Step 6: Final answer
x = 42.32
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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.