Finding the Fourth Proportional to 76,423.14, 114,634.64 and 50,121.74
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Solution
The fourth proportional to 76,423.14, 114,634.64 and 50,121.74 is: 75,182.55
Step by Step Solution
- Step 1: Write the proportion equation
76,423.14 : 114,634.64 = 50,121.74 : x - Step 2: Convert to fraction form
76,423.14/114,634.64 = 50,121.74/x - Step 3: Cross multiply
76,423.14x = 114,634.64 × 50,121.74 - Step 4: Simplify right side
76,423.14x = 5,745,686,797.29 - Step 5: Solve for x
x = 5,745,686,797.29/76,423.14 - Step 6: Final answer
x = 75,182.55
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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.