Finding the Fourth Proportional to 87,766.41, 121,117.14 and 47,480.05
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Solution
The fourth proportional to 87,766.41, 121,117.14 and 47,480.05 is: 65,522.20
Step by Step Solution
- Step 1: Write the proportion equation
87,766.41 : 121,117.14 = 47,480.05 : x - Step 2: Convert to fraction form
87,766.41/121,117.14 = 47,480.05/x - Step 3: Cross multiply
87,766.41x = 121,117.14 × 47,480.05 - Step 4: Simplify right side
87,766.41x = 5,750,647,863.06 - Step 5: Solve for x
x = 5,750,647,863.06/87,766.41 - Step 6: Final answer
x = 65,522.20
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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.