Finding the Fourth Proportional to 87,877.13, 121,270.41 and 47,590.92
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Solution
The fourth proportional to 87,877.13, 121,270.41 and 47,590.92 is: 65,675.46
Step by Step Solution
- Step 1: Write the proportion equation
87,877.13 : 121,270.41 = 47,590.92 : x - Step 2: Convert to fraction form
87,877.13/121,270.41 = 47,590.92/x - Step 3: Cross multiply
87,877.13x = 121,270.41 × 47,590.92 - Step 4: Simplify right side
87,877.13x = 5,771,370,380.68 - Step 5: Solve for x
x = 5,771,370,380.68/87,877.13 - Step 6: Final answer
x = 65,675.46
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1.5x scale
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.