Finding the Fourth Proportional to 80,212.93, 120,278.89 and 46,942.99
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Solution
The fourth proportional to 80,212.93, 120,278.89 and 46,942.99 is: 70,390.78
Step by Step Solution
- Step 1: Write the proportion equation
80,212.93 : 120,278.89 = 46,942.99 : x - Step 2: Convert to fraction form
80,212.93/120,278.89 = 46,942.99/x - Step 3: Cross multiply
80,212.93x = 120,278.89 × 46,942.99 - Step 4: Simplify right side
80,212.93x = 5,646,250,488.46 - Step 5: Solve for x
x = 5,646,250,488.46/80,212.93 - Step 6: Final answer
x = 70,390.78
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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.