Finding the Fourth Proportional to 80,217.99, 110,719.41 and 53,361.63
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Solution
The fourth proportional to 80,217.99, 110,719.41 and 53,361.63 is: 73,651.41
Step by Step Solution
- Step 1: Write the proportion equation
80,217.99 : 110,719.41 = 53,361.63 : x - Step 2: Convert to fraction form
80,217.99/110,719.41 = 53,361.63/x - Step 3: Cross multiply
80,217.99x = 110,719.41 × 53,361.63 - Step 4: Simplify right side
80,217.99x = 5,908,168,190.24 - Step 5: Solve for x
x = 5,908,168,190.24/80,217.99 - Step 6: Final answer
x = 73,651.41
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.