Finding the Fourth Proportional to 87,793.80, 121,154.60 and 47,506.68
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Solution
The fourth proportional to 87,793.80, 121,154.60 and 47,506.68 is: 65,558.76
Step by Step Solution
- Step 1: Write the proportion equation
87,793.80 : 121,154.60 = 47,506.68 : x - Step 2: Convert to fraction form
87,793.80/121,154.60 = 47,506.68/x - Step 3: Cross multiply
87,793.80x = 121,154.60 × 47,506.68 - Step 4: Simplify right side
87,793.80x = 5,755,652,812.73 - Step 5: Solve for x
x = 5,755,652,812.73/87,793.80 - Step 6: Final answer
x = 65,558.76
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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.