Finding the Fourth Proportional to 87,859.36, 131,787.87 and 21,300.08
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Solution
The fourth proportional to 87,859.36, 131,787.87 and 21,300.08 is: 31,949.84
Step by Step Solution
- Step 1: Write the proportion equation
87,859.36 : 131,787.87 = 21,300.08 : x - Step 2: Convert to fraction form
87,859.36/131,787.87 = 21,300.08/x - Step 3: Cross multiply
87,859.36x = 131,787.87 × 21,300.08 - Step 4: Simplify right side
87,859.36x = 2,807,092,174.03 - Step 5: Solve for x
x = 2,807,092,174.03/87,859.36 - Step 6: Final answer
x = 31,949.84
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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.