Finding the Fourth Proportional to 80,711.51, 121,067.26 and 36,329.99
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Solution
The fourth proportional to 80,711.51, 121,067.26 and 36,329.99 is: 54,494.98
Step by Step Solution
- Step 1: Write the proportion equation
80,711.51 : 121,067.26 = 36,329.99 : x - Step 2: Convert to fraction form
80,711.51/121,067.26 = 36,329.99/x - Step 3: Cross multiply
80,711.51x = 121,067.26 × 36,329.99 - Step 4: Simplify right side
80,711.51x = 4,398,371,648.97 - Step 5: Solve for x
x = 4,398,371,648.97/80,711.51 - Step 6: Final answer
x = 54,494.98
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.