Finding the Fourth Proportional to 91,079.24, 125,704.71 and 67,274.96
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Solution
The fourth proportional to 91,079.24, 125,704.71 and 67,274.96 is: 92,850.79
Step by Step Solution
- Step 1: Write the proportion equation
91,079.24 : 125,704.71 = 67,274.96 : x - Step 2: Convert to fraction form
91,079.24/125,704.71 = 67,274.96/x - Step 3: Cross multiply
91,079.24x = 125,704.71 × 67,274.96 - Step 4: Simplify right side
91,079.24x = 8,456,778,708.54 - Step 5: Solve for x
x = 8,456,778,708.54/91,079.24 - Step 6: Final answer
x = 92,850.79
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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.