Finding the Fourth Proportional to 80,129.44, 120,231.68 and 35,751.52
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Solution
The fourth proportional to 80,129.44, 120,231.68 and 35,751.52 is: 53,644.02
Step by Step Solution
- Step 1: Write the proportion equation
80,129.44 : 120,231.68 = 35,751.52 : x - Step 2: Convert to fraction form
80,129.44/120,231.68 = 35,751.52/x - Step 3: Cross multiply
80,129.44x = 120,231.68 × 35,751.52 - Step 4: Simplify right side
80,129.44x = 4,298,465,312.15 - Step 5: Solve for x
x = 4,298,465,312.15/80,129.44 - Step 6: Final answer
x = 53,644.02
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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.