Finding the Fourth Proportional to 76,940.96, 115,325.16 and 50,338.07
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Solution
The fourth proportional to 76,940.96, 115,325.16 and 50,338.07 is: 75,450.66
Step by Step Solution
- Step 1: Write the proportion equation
76,940.96 : 115,325.16 = 50,338.07 : x - Step 2: Convert to fraction form
76,940.96/115,325.16 = 50,338.07/x - Step 3: Cross multiply
76,940.96x = 115,325.16 × 50,338.07 - Step 4: Simplify right side
76,940.96x = 5,805,245,976.84 - Step 5: Solve for x
x = 5,805,245,976.84/76,940.96 - Step 6: Final answer
x = 75,450.66
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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.