Finding the Fourth Proportional to 74.13, 110.95 and 63.19
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Solution
The fourth proportional to 74.13, 110.95 and 63.19 is: 94.58
Step by Step Solution
- Step 1: Write the proportion equation
74.13 : 110.95 = 63.19 : x - Step 2: Convert to fraction form
74.13/110.95 = 63.19/x - Step 3: Cross multiply
74.13x = 110.95 × 63.19 - Step 4: Simplify right side
74.13x = 7,010.93 - Step 5: Solve for x
x = 7,010.93/74.13 - Step 6: Final answer
x = 94.58
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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.