Finding the Fourth Proportional to 68.93, 103.21 and 44.58
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Solution
The fourth proportional to 68.93, 103.21 and 44.58 is: 66.75
Step by Step Solution
- Step 1: Write the proportion equation
68.93 : 103.21 = 44.58 : x - Step 2: Convert to fraction form
68.93/103.21 = 44.58/x - Step 3: Cross multiply
68.93x = 103.21 × 44.58 - Step 4: Simplify right side
68.93x = 4,600.99 - Step 5: Solve for x
x = 4,600.99/68.93 - Step 6: Final answer
x = 66.75
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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.