Finding the Fourth Proportional to 42.29, 58.32 and 37.99
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Solution
The fourth proportional to 42.29, 58.32 and 37.99 is: 52.38
Step by Step Solution
- Step 1: Write the proportion equation
42.29 : 58.32 = 37.99 : x - Step 2: Convert to fraction form
42.29/58.32 = 37.99/x - Step 3: Cross multiply
42.29x = 58.32 × 37.99 - Step 4: Simplify right side
42.29x = 2,215.43 - Step 5: Solve for x
x = 2,215.43/42.29 - Step 6: Final answer
x = 52.38
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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.