Finding the Fourth Proportional to 91,516.14, 126,291.60 and 51,229.80
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Solution
The fourth proportional to 91,516.14, 126,291.60 and 51,229.80 is: 70,696.75
Step by Step Solution
- Step 1: Write the proportion equation
91,516.14 : 126,291.60 = 51,229.80 : x - Step 2: Convert to fraction form
91,516.14/126,291.60 = 51,229.80/x - Step 3: Cross multiply
91,516.14x = 126,291.60 × 51,229.80 - Step 4: Simplify right side
91,516.14x = 6,469,893,409.68 - Step 5: Solve for x
x = 6,469,893,409.68/91,516.14 - Step 6: Final answer
x = 70,696.75
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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.