Finding the Fourth Proportional to 79,121.63, 118,711.61 and 41,680.19
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Solution
The fourth proportional to 79,121.63, 118,711.61 and 41,680.19 is: 62,535.64
Step by Step Solution
- Step 1: Write the proportion equation
79,121.63 : 118,711.61 = 41,680.19 : x - Step 2: Convert to fraction form
79,121.63/118,711.61 = 41,680.19/x - Step 3: Cross multiply
79,121.63x = 118,711.61 × 41,680.19 - Step 4: Simplify right side
79,121.63x = 4,947,921,658.05 - Step 5: Solve for x
x = 4,947,921,658.05/79,121.63 - Step 6: Final answer
x = 62,535.64
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1.5x scale
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.