Finding the Fourth Proportional to 81,476.97, 122,219.10 and 22,311.33
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Solution
The fourth proportional to 81,476.97, 122,219.10 and 22,311.33 is: 33,467.99
Step by Step Solution
- Step 1: Write the proportion equation
81,476.97 : 122,219.10 = 22,311.33 : x - Step 2: Convert to fraction form
81,476.97/122,219.10 = 22,311.33/x - Step 3: Cross multiply
81,476.97x = 122,219.10 × 22,311.33 - Step 4: Simplify right side
81,476.97x = 2,726,870,672.40 - Step 5: Solve for x
x = 2,726,870,672.40/81,476.97 - Step 6: Final answer
x = 33,467.99
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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.