Finding the Fourth Proportional to 42.13, 63.12 and 34.10
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Solution
The fourth proportional to 42.13, 63.12 and 34.10 is: 51.09
Step by Step Solution
- Step 1: Write the proportion equation
42.13 : 63.12 = 34.10 : x - Step 2: Convert to fraction form
42.13/63.12 = 34.10/x - Step 3: Cross multiply
42.13x = 63.12 × 34.10 - Step 4: Simplify right side
42.13x = 2,152.08 - Step 5: Solve for x
x = 2,152.08/42.13 - Step 6: Final answer
x = 51.09
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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.