Finding the Fourth Proportional to 68.25, 102.44 and 36.19
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Solution
The fourth proportional to 68.25, 102.44 and 36.19 is: 54.32
Step by Step Solution
- Step 1: Write the proportion equation
68.25 : 102.44 = 36.19 : x - Step 2: Convert to fraction form
68.25/102.44 = 36.19/x - Step 3: Cross multiply
68.25x = 102.44 × 36.19 - Step 4: Simplify right side
68.25x = 3,707.14 - Step 5: Solve for x
x = 3,707.14/68.25 - Step 6: Final answer
x = 54.32
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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.