Finding the Fourth Proportional to 80,758.91, 121,163.19 and 41,343.70
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Solution
The fourth proportional to 80,758.91, 121,163.19 and 41,343.70 is: 62,028.26
Step by Step Solution
- Step 1: Write the proportion equation
80,758.91 : 121,163.19 = 41,343.70 : x - Step 2: Convert to fraction form
80,758.91/121,163.19 = 41,343.70/x - Step 3: Cross multiply
80,758.91x = 121,163.19 × 41,343.70 - Step 4: Simplify right side
80,758.91x = 5,009,334,578.40 - Step 5: Solve for x
x = 5,009,334,578.40/80,758.91 - Step 6: Final answer
x = 62,028.26
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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.