Finding the Fourth Proportional to 42.08, 63.06 and 33.09
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Solution
The fourth proportional to 42.08, 63.06 and 33.09 is: 49.59
Step by Step Solution
- Step 1: Write the proportion equation
42.08 : 63.06 = 33.09 : x - Step 2: Convert to fraction form
42.08/63.06 = 33.09/x - Step 3: Cross multiply
42.08x = 63.06 × 33.09 - Step 4: Simplify right side
42.08x = 2,086.66 - Step 5: Solve for x
x = 2,086.66/42.08 - Step 6: Final answer
x = 49.59
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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.