Finding the Fourth Proportional to 82,889.56, 124,335.20 and 66,354.70
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Solution
The fourth proportional to 82,889.56, 124,335.20 and 66,354.70 is: 99,532.74
Step by Step Solution
- Step 1: Write the proportion equation
82,889.56 : 124,335.20 = 66,354.70 : x - Step 2: Convert to fraction form
82,889.56/124,335.20 = 66,354.70/x - Step 3: Cross multiply
82,889.56x = 124,335.20 × 66,354.70 - Step 4: Simplify right side
82,889.56x = 8,250,224,895.44 - Step 5: Solve for x
x = 8,250,224,895.44/82,889.56 - Step 6: Final answer
x = 99,532.74
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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.