Finding the Fourth Proportional to 69,761.97, 104,640.60 and 30,319.09
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Solution
The fourth proportional to 69,761.97, 104,640.60 and 30,319.09 is: 45,477.61
Step by Step Solution
- Step 1: Write the proportion equation
69,761.97 : 104,640.60 = 30,319.09 : x - Step 2: Convert to fraction form
69,761.97/104,640.60 = 30,319.09/x - Step 3: Cross multiply
69,761.97x = 104,640.60 × 30,319.09 - Step 4: Simplify right side
69,761.97x = 3,172,607,769.05 - Step 5: Solve for x
x = 3,172,607,769.05/69,761.97 - Step 6: Final answer
x = 45,477.61
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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.