Finding the Fourth Proportional to 68.63, 94.55 and 63.99
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Solution
The fourth proportional to 68.63, 94.55 and 63.99 is: 88.16
Step by Step Solution
- Step 1: Write the proportion equation
68.63 : 94.55 = 63.99 : x - Step 2: Convert to fraction form
68.63/94.55 = 63.99/x - Step 3: Cross multiply
68.63x = 94.55 × 63.99 - Step 4: Simplify right side
68.63x = 6,049.93 - Step 5: Solve for x
x = 6,049.93/68.63 - Step 6: Final answer
x = 88.16
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.