Finding the Fourth Proportional to 87,828.36, 121,203.09 and 47,542.46
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Solution
The fourth proportional to 87,828.36, 121,203.09 and 47,542.46 is: 65,608.56
Step by Step Solution
- Step 1: Write the proportion equation
87,828.36 : 121,203.09 = 47,542.46 : x - Step 2: Convert to fraction form
87,828.36/121,203.09 = 47,542.46/x - Step 3: Cross multiply
87,828.36x = 121,203.09 × 47,542.46 - Step 4: Simplify right side
87,828.36x = 5,762,292,452.19 - Step 5: Solve for x
x = 5,762,292,452.19/87,828.36 - Step 6: Final answer
x = 65,608.56
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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.