Finding the Fourth Proportional to 87,586.44, 120,869.42 and 49,860.70
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Solution
The fourth proportional to 87,586.44, 120,869.42 and 49,860.70 is: 68,807.84
Step by Step Solution
- Step 1: Write the proportion equation
87,586.44 : 120,869.42 = 49,860.70 : x - Step 2: Convert to fraction form
87,586.44/120,869.42 = 49,860.70/x - Step 3: Cross multiply
87,586.44x = 120,869.42 × 49,860.70 - Step 4: Simplify right side
87,586.44x = 6,026,633,889.79 - Step 5: Solve for x
x = 6,026,633,889.79/87,586.44 - Step 6: Final answer
x = 68,807.84
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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.