Finding the Fourth Proportional to 87,163.44, 120,285.51 and 49,437.69
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Solution
The fourth proportional to 87,163.44, 120,285.51 and 49,437.69 is: 68,223.99
Step by Step Solution
- Step 1: Write the proportion equation
87,163.44 : 120,285.51 = 49,437.69 : x - Step 2: Convert to fraction form
87,163.44/120,285.51 = 49,437.69/x - Step 3: Cross multiply
87,163.44x = 120,285.51 × 49,437.69 - Step 4: Simplify right side
87,163.44x = 5,946,637,754.87 - Step 5: Solve for x
x = 5,946,637,754.87/87,163.44 - Step 6: Final answer
x = 68,223.99
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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.