Finding the Fourth Proportional to 83,489.76, 125,247.60 and 39,120.48
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Solution
The fourth proportional to 83,489.76, 125,247.60 and 39,120.48 is: 58,686.79
Step by Step Solution
- Step 1: Write the proportion equation
83,489.76 : 125,247.60 = 39,120.48 : x - Step 2: Convert to fraction form
83,489.76/125,247.60 = 39,120.48/x - Step 3: Cross multiply
83,489.76x = 125,247.60 × 39,120.48 - Step 4: Simplify right side
83,489.76x = 4,899,746,230.85 - Step 5: Solve for x
x = 4,899,746,230.85/83,489.76 - Step 6: Final answer
x = 58,686.79
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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.