Finding the Fourth Proportional to 75,163.70, 103,725.68 and 41,629.70
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Solution
The fourth proportional to 75,163.70, 103,725.68 and 41,629.70 is: 57,448.86
Step by Step Solution
- Step 1: Write the proportion equation
75,163.70 : 103,725.68 = 41,629.70 : x - Step 2: Convert to fraction form
75,163.70/103,725.68 = 41,629.70/x - Step 3: Cross multiply
75,163.70x = 103,725.68 × 41,629.70 - Step 4: Simplify right side
75,163.70x = 4,318,068,940.70 - Step 5: Solve for x
x = 4,318,068,940.70/75,163.70 - Step 6: Final answer
x = 57,448.86
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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.