Finding the Fourth Proportional to 54.44, 74.74 and 49.52
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Solution
The fourth proportional to 54.44, 74.74 and 49.52 is: 67.99
Step by Step Solution
- Step 1: Write the proportion equation
54.44 : 74.74 = 49.52 : x - Step 2: Convert to fraction form
54.44/74.74 = 49.52/x - Step 3: Cross multiply
54.44x = 74.74 × 49.52 - Step 4: Simplify right side
54.44x = 3,701.12 - Step 5: Solve for x
x = 3,701.12/54.44 - Step 6: Final answer
x = 67.99
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.