Finding the Fourth Proportional to 83,440.15, 125,161.02 and 20,260.84
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Solution
The fourth proportional to 83,440.15, 125,161.02 and 20,260.84 is: 30,391.45
Step by Step Solution
- Step 1: Write the proportion equation
83,440.15 : 125,161.02 = 20,260.84 : x - Step 2: Convert to fraction form
83,440.15/125,161.02 = 20,260.84/x - Step 3: Cross multiply
83,440.15x = 125,161.02 × 20,260.84 - Step 4: Simplify right side
83,440.15x = 2,535,867,400.46 - Step 5: Solve for x
x = 2,535,867,400.46/83,440.15 - Step 6: Final answer
x = 30,391.45
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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.