Finding the Fourth Proportional to 65.39, 89.97 and 59.99
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Solution
The fourth proportional to 65.39, 89.97 and 59.99 is: 82.54
Step by Step Solution
- Step 1: Write the proportion equation
65.39 : 89.97 = 59.99 : x - Step 2: Convert to fraction form
65.39/89.97 = 59.99/x - Step 3: Cross multiply
65.39x = 89.97 × 59.99 - Step 4: Simplify right side
65.39x = 5,397.19 - Step 5: Solve for x
x = 5,397.19/65.39 - Step 6: Final answer
x = 82.54
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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.