Finding the Fourth Proportional to 91,768.14, 126,640.08 and 53,553.96
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Solution
The fourth proportional to 91,768.14, 126,640.08 and 53,553.96 is: 73,904.49
Step by Step Solution
- Step 1: Write the proportion equation
91,768.14 : 126,640.08 = 53,553.96 : x - Step 2: Convert to fraction form
91,768.14/126,640.08 = 53,553.96/x - Step 3: Cross multiply
91,768.14x = 126,640.08 × 53,553.96 - Step 4: Simplify right side
91,768.14x = 6,782,077,778.72 - Step 5: Solve for x
x = 6,782,077,778.72/91,768.14 - Step 6: Final answer
x = 73,904.49
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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.