Finding the Fourth Proportional to 87,803.94, 121,169.42 and 47,517.70
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Solution
The fourth proportional to 87,803.94, 121,169.42 and 47,517.70 is: 65,574.42
Step by Step Solution
- Step 1: Write the proportion equation
87,803.94 : 121,169.42 = 47,517.70 : x - Step 2: Convert to fraction form
87,803.94/121,169.42 = 47,517.70/x - Step 3: Cross multiply
87,803.94x = 121,169.42 × 47,517.70 - Step 4: Simplify right side
87,803.94x = 5,757,692,148.73 - Step 5: Solve for x
x = 5,757,692,148.73/87,803.94 - Step 6: Final answer
x = 65,574.42
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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.