Finding the Fourth Proportional to 87,814.10, 131,626.68 and 37,917.70
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Solution
The fourth proportional to 87,814.10, 131,626.68 and 37,917.70 is: 56,835.76
Step by Step Solution
- Step 1: Write the proportion equation
87,814.10 : 131,626.68 = 37,917.70 : x - Step 2: Convert to fraction form
87,814.10/131,626.68 = 37,917.70/x - Step 3: Cross multiply
87,814.10x = 131,626.68 × 37,917.70 - Step 4: Simplify right side
87,814.10x = 4,990,980,964.24 - Step 5: Solve for x
x = 4,990,980,964.24/87,814.10 - Step 6: Final answer
x = 56,835.76
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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.