Finding the Fourth Proportional to 71,759.25, 106,880.85 and 68,012.19
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Solution
The fourth proportional to 71,759.25, 106,880.85 and 68,012.19 is: 101,299.84
Step by Step Solution
- Step 1: Write the proportion equation
71,759.25 : 106,880.85 = 68,012.19 : x - Step 2: Convert to fraction form
71,759.25/106,880.85 = 68,012.19/x - Step 3: Cross multiply
71,759.25x = 106,880.85 × 68,012.19 - Step 4: Simplify right side
71,759.25x = 7,269,200,677.56 - Step 5: Solve for x
x = 7,269,200,677.56/71,759.25 - Step 6: Final answer
x = 101,299.84
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.