Finding the Fourth Proportional to 87,804.14, 121,169.49 and 47,517.98
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Solution
The fourth proportional to 87,804.14, 121,169.49 and 47,517.98 is: 65,574.69
Step by Step Solution
- Step 1: Write the proportion equation
87,804.14 : 121,169.49 = 47,517.98 : x - Step 2: Convert to fraction form
87,804.14/121,169.49 = 47,517.98/x - Step 3: Cross multiply
87,804.14x = 121,169.49 × 47,517.98 - Step 4: Simplify right side
87,804.14x = 5,757,729,402.43 - Step 5: Solve for x
x = 5,757,729,402.43/87,804.14 - Step 6: Final answer
x = 65,574.69
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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.