Finding the Fourth Proportional to 62,787.70, 94,122.99 and 21,205.62
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Solution
The fourth proportional to 62,787.70, 94,122.99 and 21,205.62 is: 31,788.65
Step by Step Solution
- Step 1: Write the proportion equation
62,787.70 : 94,122.99 = 21,205.62 : x - Step 2: Convert to fraction form
62,787.70/94,122.99 = 21,205.62/x - Step 3: Cross multiply
62,787.70x = 94,122.99 × 21,205.62 - Step 4: Simplify right side
62,787.70x = 1,995,936,359.20 - Step 5: Solve for x
x = 1,995,936,359.20/62,787.70 - Step 6: Final answer
x = 31,788.65
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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.