Finding the Fourth Proportional to 78,108.80, 107,787.84 and 44,118.68
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Solution
The fourth proportional to 78,108.80, 107,787.84 and 44,118.68 is: 60,882.48
Step by Step Solution
- Step 1: Write the proportion equation
78,108.80 : 107,787.84 = 44,118.68 : x - Step 2: Convert to fraction form
78,108.80/107,787.84 = 44,118.68/x - Step 3: Cross multiply
78,108.80x = 107,787.84 × 44,118.68 - Step 4: Simplify right side
78,108.80x = 4,755,457,220.85 - Step 5: Solve for x
x = 4,755,457,220.85/78,108.80 - Step 6: Final answer
x = 60,882.48
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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.