Finding the Fourth Proportional to 73,790.46, 110,685.69 and 21,200.00
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Solution
The fourth proportional to 73,790.46, 110,685.69 and 21,200.00 is: 31,799.99
Step by Step Solution
- Step 1: Write the proportion equation
73,790.46 : 110,685.69 = 21,200.00 : x - Step 2: Convert to fraction form
73,790.46/110,685.69 = 21,200.00/x - Step 3: Cross multiply
73,790.46x = 110,685.69 × 21,200.00 - Step 4: Simplify right side
73,790.46x = 2,346,536,074.57 - Step 5: Solve for x
x = 2,346,536,074.57/73,790.46 - Step 6: Final answer
x = 31,799.99
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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.