Finding the Fourth Proportional to 80,785.80, 121,178.70 and 41,329.80
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Solution
The fourth proportional to 80,785.80, 121,178.70 and 41,329.80 is: 61,994.70
Step by Step Solution
- Step 1: Write the proportion equation
80,785.80 : 121,178.70 = 41,329.80 : x - Step 2: Convert to fraction form
80,785.80/121,178.70 = 41,329.80/x - Step 3: Cross multiply
80,785.80x = 121,178.70 × 41,329.80 - Step 4: Simplify right side
80,785.80x = 5,008,291,435.26 - Step 5: Solve for x
x = 5,008,291,435.26/80,785.80 - Step 6: Final answer
x = 61,994.70
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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.