Finding the Fourth Proportional to 67,207.80, 100,811.70 and 29,785.80
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Solution
The fourth proportional to 67,207.80, 100,811.70 and 29,785.80 is: 44,678.70
Step by Step Solution
- Step 1: Write the proportion equation
67,207.80 : 100,811.70 = 29,785.80 : x - Step 2: Convert to fraction form
67,207.80/100,811.70 = 29,785.80/x - Step 3: Cross multiply
67,207.80x = 100,811.70 × 29,785.80 - Step 4: Simplify right side
67,207.80x = 3,002,757,133.86 - Step 5: Solve for x
x = 3,002,757,133.86/67,207.80 - Step 6: Final answer
x = 44,678.70
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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.