Finding the Fourth Proportional to 76,950.09, 106,107.42 and 50,042.70
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Solution
The fourth proportional to 76,950.09, 106,107.42 and 50,042.70 is: 69,004.49
Step by Step Solution
- Step 1: Write the proportion equation
76,950.09 : 106,107.42 = 50,042.70 : x - Step 2: Convert to fraction form
76,950.09/106,107.42 = 50,042.70/x - Step 3: Cross multiply
76,950.09x = 106,107.42 × 50,042.70 - Step 4: Simplify right side
76,950.09x = 5,309,901,786.83 - Step 5: Solve for x
x = 5,309,901,786.83/76,950.09 - Step 6: Final answer
x = 69,004.49
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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.