Finding the Fourth Proportional to 67,201.80, 100,802.70 and 27,787.20
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Solution
The fourth proportional to 67,201.80, 100,802.70 and 27,787.20 is: 41,680.80
Step by Step Solution
- Step 1: Write the proportion equation
67,201.80 : 100,802.70 = 27,787.20 : x - Step 2: Convert to fraction form
67,201.80/100,802.70 = 27,787.20/x - Step 3: Cross multiply
67,201.80x = 100,802.70 × 27,787.20 - Step 4: Simplify right side
67,201.80x = 2,801,024,785.44 - Step 5: Solve for x
x = 2,801,024,785.44/67,201.80 - Step 6: Final answer
x = 41,680.80
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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.