Finding the Fourth Proportional to 87,790.38, 121,149.84 and 47,503.26
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Solution
The fourth proportional to 87,790.38, 121,149.84 and 47,503.26 is: 65,554.02
Step by Step Solution
- Step 1: Write the proportion equation
87,790.38 : 121,149.84 = 47,503.26 : x - Step 2: Convert to fraction form
87,790.38/121,149.84 = 47,503.26/x - Step 3: Cross multiply
87,790.38x = 121,149.84 × 47,503.26 - Step 4: Simplify right side
87,790.38x = 5,755,012,348.48 - Step 5: Solve for x
x = 5,755,012,348.48/87,790.38 - Step 6: Final answer
x = 65,554.02
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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.