Finding the Fourth Proportional to 66.56, 91.83 and 41.99
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Solution
The fourth proportional to 66.56, 91.83 and 41.99 is: 57.93
Step by Step Solution
- Step 1: Write the proportion equation
66.56 : 91.83 = 41.99 : x - Step 2: Convert to fraction form
66.56/91.83 = 41.99/x - Step 3: Cross multiply
66.56x = 91.83 × 41.99 - Step 4: Simplify right side
66.56x = 3,855.48 - Step 5: Solve for x
x = 3,855.48/66.56 - Step 6: Final answer
x = 57.93
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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.