Finding the Fourth Proportional to 74,091.75, 102,245.79 and 40,099.47
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Solution
The fourth proportional to 74,091.75, 102,245.79 and 40,099.47 is: 55,336.82
Step by Step Solution
- Step 1: Write the proportion equation
74,091.75 : 102,245.79 = 40,099.47 : x - Step 2: Convert to fraction form
74,091.75/102,245.79 = 40,099.47/x - Step 3: Cross multiply
74,091.75x = 102,245.79 × 40,099.47 - Step 4: Simplify right side
74,091.75x = 4,100,001,988.73 - Step 5: Solve for x
x = 4,100,001,988.73/74,091.75 - Step 6: Final answer
x = 55,336.82
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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.