Finding the Fourth Proportional to 73,819.75, 110,729.64 and 18,415.75
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Solution
The fourth proportional to 73,819.75, 110,729.64 and 18,415.75 is: 27,623.63
Step by Step Solution
- Step 1: Write the proportion equation
73,819.75 : 110,729.64 = 18,415.75 : x - Step 2: Convert to fraction form
73,819.75/110,729.64 = 18,415.75/x - Step 3: Cross multiply
73,819.75x = 110,729.64 × 18,415.75 - Step 4: Simplify right side
73,819.75x = 2,039,169,367.83 - Step 5: Solve for x
x = 2,039,169,367.83/73,819.75 - Step 6: Final answer
x = 27,623.63
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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.