Finding the Fourth Proportional to 87,790.08, 121,149.92 and 47,504.55
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Solution
The fourth proportional to 87,790.08, 121,149.92 and 47,504.55 is: 65,556.07
Step by Step Solution
- Step 1: Write the proportion equation
87,790.08 : 121,149.92 = 47,504.55 : x - Step 2: Convert to fraction form
87,790.08/121,149.92 = 47,504.55/x - Step 3: Cross multiply
87,790.08x = 121,149.92 × 47,504.55 - Step 4: Simplify right side
87,790.08x = 5,755,172,194.61 - Step 5: Solve for x
x = 5,755,172,194.61/87,790.08 - Step 6: Final answer
x = 65,556.07
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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.