Finding the Fourth Proportional to 76,660.70, 114,772.35 and 67,912.70
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Solution
The fourth proportional to 76,660.70, 114,772.35 and 67,912.70 is: 101,675.31
Step by Step Solution
- Step 1: Write the proportion equation
76,660.70 : 114,772.35 = 67,912.70 : x - Step 2: Convert to fraction form
76,660.70/114,772.35 = 67,912.70/x - Step 3: Cross multiply
76,660.70x = 114,772.35 × 67,912.70 - Step 4: Simplify right side
76,660.70x = 7,794,500,173.85 - Step 5: Solve for x
x = 7,794,500,173.85/76,660.70 - Step 6: Final answer
x = 101,675.31
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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.