Finding the Fourth Proportional to 74.07, 110.97 and 58.01
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Solution
The fourth proportional to 74.07, 110.97 and 58.01 is: 86.90
Step by Step Solution
- Step 1: Write the proportion equation
74.07 : 110.97 = 58.01 : x - Step 2: Convert to fraction form
74.07/110.97 = 58.01/x - Step 3: Cross multiply
74.07x = 110.97 × 58.01 - Step 4: Simplify right side
74.07x = 6,436.81 - Step 5: Solve for x
x = 6,436.81/74.07 - Step 6: Final answer
x = 86.90
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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.