Finding the Fourth Proportional to 58.21, 87.26 and 27.79
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Solution
The fourth proportional to 58.21, 87.26 and 27.79 is: 41.65
Step by Step Solution
- Step 1: Write the proportion equation
58.21 : 87.26 = 27.79 : x - Step 2: Convert to fraction form
58.21/87.26 = 27.79/x - Step 3: Cross multiply
58.21x = 87.26 × 27.79 - Step 4: Simplify right side
58.21x = 2,424.60 - Step 5: Solve for x
x = 2,424.60/58.21 - Step 6: Final answer
x = 41.65
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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.