Finding the Fourth Proportional to 68.05, 101.79 and 56.66
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Solution
The fourth proportional to 68.05, 101.79 and 56.66 is: 84.75
Step by Step Solution
- Step 1: Write the proportion equation
68.05 : 101.79 = 56.66 : x - Step 2: Convert to fraction form
68.05/101.79 = 56.66/x - Step 3: Cross multiply
68.05x = 101.79 × 56.66 - Step 4: Simplify right side
68.05x = 5,767.42 - Step 5: Solve for x
x = 5,767.42/68.05 - Step 6: Final answer
x = 84.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.