Finding the Fourth Proportional to 81,539.28, 122,311.26 and 22,375.44
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Solution
The fourth proportional to 81,539.28, 122,311.26 and 22,375.44 is: 33,563.80
Step by Step Solution
- Step 1: Write the proportion equation
81,539.28 : 122,311.26 = 22,375.44 : x - Step 2: Convert to fraction form
81,539.28/122,311.26 = 22,375.44/x - Step 3: Cross multiply
81,539.28x = 122,311.26 × 22,375.44 - Step 4: Simplify right side
81,539.28x = 2,736,768,259.45 - Step 5: Solve for x
x = 2,736,768,259.45/81,539.28 - Step 6: Final answer
x = 33,563.80
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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.