Finding the Fourth Proportional to 42.29, 58.37 and 33.05
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Solution
The fourth proportional to 42.29, 58.37 and 33.05 is: 45.62
Step by Step Solution
- Step 1: Write the proportion equation
42.29 : 58.37 = 33.05 : x - Step 2: Convert to fraction form
42.29/58.37 = 33.05/x - Step 3: Cross multiply
42.29x = 58.37 × 33.05 - Step 4: Simplify right side
42.29x = 1,929.13 - Step 5: Solve for x
x = 1,929.13/42.29 - Step 6: Final answer
x = 45.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.