Finding the Fourth Proportional to 53.24, 79.91 and 42.41
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Solution
The fourth proportional to 53.24, 79.91 and 42.41 is: 63.65
Step by Step Solution
- Step 1: Write the proportion equation
53.24 : 79.91 = 42.41 : x - Step 2: Convert to fraction form
53.24/79.91 = 42.41/x - Step 3: Cross multiply
53.24x = 79.91 × 42.41 - Step 4: Simplify right side
53.24x = 3,388.37 - Step 5: Solve for x
x = 3,388.37/53.24 - Step 6: Final answer
x = 63.65
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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.