Finding the Fourth Proportional to 75,343.57, 103,988.46 and 49,850.44
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Solution
The fourth proportional to 75,343.57, 103,988.46 and 49,850.44 is: 68,803.09
Step by Step Solution
- Step 1: Write the proportion equation
75,343.57 : 103,988.46 = 49,850.44 : x - Step 2: Convert to fraction form
75,343.57/103,988.46 = 49,850.44/x - Step 3: Cross multiply
75,343.57x = 103,988.46 × 49,850.44 - Step 4: Simplify right side
75,343.57x = 5,183,870,485.92 - Step 5: Solve for x
x = 5,183,870,485.92/75,343.57 - Step 6: Final answer
x = 68,803.09
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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.