Finding the Fourth Proportional to 49.31, 68.05 and 27.48
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Solution
The fourth proportional to 49.31, 68.05 and 27.48 is: 37.92
Step by Step Solution
- Step 1: Write the proportion equation
49.31 : 68.05 = 27.48 : x - Step 2: Convert to fraction form
49.31/68.05 = 27.48/x - Step 3: Cross multiply
49.31x = 68.05 × 27.48 - Step 4: Simplify right side
49.31x = 1,870.05 - Step 5: Solve for x
x = 1,870.05/49.31 - Step 6: Final answer
x = 37.92
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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.