Finding the Fourth Proportional to 42.17, 58.17 and 33.99
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Solution
The fourth proportional to 42.17, 58.17 and 33.99 is: 46.89
Step by Step Solution
- Step 1: Write the proportion equation
42.17 : 58.17 = 33.99 : x - Step 2: Convert to fraction form
42.17/58.17 = 33.99/x - Step 3: Cross multiply
42.17x = 58.17 × 33.99 - Step 4: Simplify right side
42.17x = 1,977.20 - Step 5: Solve for x
x = 1,977.20/42.17 - Step 6: Final answer
x = 46.89
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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.