Finding the Fourth Proportional to 42.01, 63.26 and 30.07
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Solution
The fourth proportional to 42.01, 63.26 and 30.07 is: 45.28
Step by Step Solution
- Step 1: Write the proportion equation
42.01 : 63.26 = 30.07 : x - Step 2: Convert to fraction form
42.01/63.26 = 30.07/x - Step 3: Cross multiply
42.01x = 63.26 × 30.07 - Step 4: Simplify right side
42.01x = 1,902.23 - Step 5: Solve for x
x = 1,902.23/42.01 - Step 6: Final answer
x = 45.28
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.