Finding the Fourth Proportional to 80,507.42, 120,574.27 and 77,704.99
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Solution
The fourth proportional to 80,507.42, 120,574.27 and 77,704.99 is: 116,377.12
Step by Step Solution
- Step 1: Write the proportion equation
80,507.42 : 120,574.27 = 77,704.99 : x - Step 2: Convert to fraction form
80,507.42/120,574.27 = 77,704.99/x - Step 3: Cross multiply
80,507.42x = 120,574.27 × 77,704.99 - Step 4: Simplify right side
80,507.42x = 9,369,222,240.30 - Step 5: Solve for x
x = 9,369,222,240.30/80,507.42 - Step 6: Final answer
x = 116,377.12
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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.