Finding the Fourth Proportional to 87,851.97, 121,235.79 and 47,565.77
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Solution
The fourth proportional to 87,851.97, 121,235.79 and 47,565.77 is: 65,640.79
Step by Step Solution
- Step 1: Write the proportion equation
87,851.97 : 121,235.79 = 47,565.77 : x - Step 2: Convert to fraction form
87,851.97/121,235.79 = 47,565.77/x - Step 3: Cross multiply
87,851.97x = 121,235.79 × 47,565.77 - Step 4: Simplify right side
87,851.97x = 5,766,673,096.73 - Step 5: Solve for x
x = 5,766,673,096.73/87,851.97 - Step 6: Final answer
x = 65,640.79
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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.