Finding the Fourth Proportional to 83,717.80, 125,576.70 and 71,033.20
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Solution
The fourth proportional to 83,717.80, 125,576.70 and 71,033.20 is: 106,549.80
Step by Step Solution
- Step 1: Write the proportion equation
83,717.80 : 125,576.70 = 71,033.20 : x - Step 2: Convert to fraction form
83,717.80/125,576.70 = 71,033.20/x - Step 3: Cross multiply
83,717.80x = 125,576.70 × 71,033.20 - Step 4: Simplify right side
83,717.80x = 8,920,114,846.44 - Step 5: Solve for x
x = 8,920,114,846.44/83,717.80 - Step 6: Final answer
x = 106,549.80
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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.