Finding the Fourth Proportional to 85.29, 127.99 and 33.98
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Solution
The fourth proportional to 85.29, 127.99 and 33.98 is: 50.99
Step by Step Solution
- Step 1: Write the proportion equation
85.29 : 127.99 = 33.98 : x - Step 2: Convert to fraction form
85.29/127.99 = 33.98/x - Step 3: Cross multiply
85.29x = 127.99 × 33.98 - Step 4: Simplify right side
85.29x = 4,349.10 - Step 5: Solve for x
x = 4,349.10/85.29 - Step 6: Final answer
x = 50.99
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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.