Finding the Fourth Proportional to 80,589.33, 120,292.49 and 74,651.63
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Solution
The fourth proportional to 80,589.33, 120,292.49 and 74,651.63 is: 111,429.52
Step by Step Solution
- Step 1: Write the proportion equation
80,589.33 : 120,292.49 = 74,651.63 : x - Step 2: Convert to fraction form
80,589.33/120,292.49 = 74,651.63/x - Step 3: Cross multiply
80,589.33x = 120,292.49 × 74,651.63 - Step 4: Simplify right side
80,589.33x = 8,980,030,040.43 - Step 5: Solve for x
x = 8,980,030,040.43/80,589.33 - Step 6: Final answer
x = 111,429.52
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.