Finding the Fourth Proportional to 68.44, 94.52 and 64.09
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Solution
The fourth proportional to 68.44, 94.52 and 64.09 is: 88.50
Step by Step Solution
- Step 1: Write the proportion equation
68.44 : 94.52 = 64.09 : x - Step 2: Convert to fraction form
68.44/94.52 = 64.09/x - Step 3: Cross multiply
68.44x = 94.52 × 64.09 - Step 4: Simplify right side
68.44x = 6,056.99 - Step 5: Solve for x
x = 6,056.99/68.44 - Step 6: Final answer
x = 88.50
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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.