Finding the Fourth Proportional to 87,812.10, 131,623.68 and 37,915.70
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Solution
The fourth proportional to 87,812.10, 131,623.68 and 37,915.70 is: 56,832.75
Step by Step Solution
- Step 1: Write the proportion equation
87,812.10 : 131,623.68 = 37,915.70 : x - Step 2: Convert to fraction form
87,812.10/131,623.68 = 37,915.70/x - Step 3: Cross multiply
87,812.10x = 131,623.68 × 37,915.70 - Step 4: Simplify right side
87,812.10x = 4,990,603,447.84 - Step 5: Solve for x
x = 4,990,603,447.84/87,812.10 - Step 6: Final answer
x = 56,832.75
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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.