Finding the Fourth Proportional to 87,883.83, 121,290.34 and 49,644.99
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Solution
The fourth proportional to 87,883.83, 121,290.34 and 49,644.99 is: 68,516.10
Step by Step Solution
- Step 1: Write the proportion equation
87,883.83 : 121,290.34 = 49,644.99 : x - Step 2: Convert to fraction form
87,883.83/121,290.34 = 49,644.99/x - Step 3: Cross multiply
87,883.83x = 121,290.34 × 49,644.99 - Step 4: Simplify right side
87,883.83x = 6,021,456,991.41 - Step 5: Solve for x
x = 6,021,456,991.41/87,883.83 - Step 6: Final answer
x = 68,516.10
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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.