Finding the Fourth Proportional to 48.71, 67.22 and 27.99
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Solution
The fourth proportional to 48.71, 67.22 and 27.99 is: 38.63
Step by Step Solution
- Step 1: Write the proportion equation
48.71 : 67.22 = 27.99 : x - Step 2: Convert to fraction form
48.71/67.22 = 27.99/x - Step 3: Cross multiply
48.71x = 67.22 × 27.99 - Step 4: Simplify right side
48.71x = 1,881.56 - Step 5: Solve for x
x = 1,881.56/48.71 - Step 6: Final answer
x = 38.63
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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.