Finding the Fourth Proportional to 89.62, 134.50 and 43.99
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Solution
The fourth proportional to 89.62, 134.50 and 43.99 is: 66.02
Step by Step Solution
- Step 1: Write the proportion equation
89.62 : 134.50 = 43.99 : x - Step 2: Convert to fraction form
89.62/134.50 = 43.99/x - Step 3: Cross multiply
89.62x = 134.50 × 43.99 - Step 4: Simplify right side
89.62x = 5,916.66 - Step 5: Solve for x
x = 5,916.66/89.62 - Step 6: Final answer
x = 66.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.