Finding the Fourth Proportional to 87,163.05, 120,280.08 and 48,919.05
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Solution
The fourth proportional to 87,163.05, 120,280.08 and 48,919.05 is: 67,505.52
Step by Step Solution
- Step 1: Write the proportion equation
87,163.05 : 120,280.08 = 48,919.05 : x - Step 2: Convert to fraction form
87,163.05/120,280.08 = 48,919.05/x - Step 3: Cross multiply
87,163.05x = 120,280.08 × 48,919.05 - Step 4: Simplify right side
87,163.05x = 5,883,987,247.52 - Step 5: Solve for x
x = 5,883,987,247.52/87,163.05 - Step 6: Final answer
x = 67,505.52
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1.5x scale
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.