Finding the Fourth Proportional to 88.74, 122.44 and 55.08
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Solution
The fourth proportional to 88.74, 122.44 and 55.08 is: 76.00
Step by Step Solution
- Step 1: Write the proportion equation
88.74 : 122.44 = 55.08 : x - Step 2: Convert to fraction form
88.74/122.44 = 55.08/x - Step 3: Cross multiply
88.74x = 122.44 × 55.08 - Step 4: Simplify right side
88.74x = 6,744.00 - Step 5: Solve for x
x = 6,744.00/88.74 - Step 6: Final answer
x = 76.00
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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.