Finding the Fourth Proportional to 83,397.21, 125,096.06 and 20,217.09
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Solution
The fourth proportional to 83,397.21, 125,096.06 and 20,217.09 is: 30,325.69
Step by Step Solution
- Step 1: Write the proportion equation
83,397.21 : 125,096.06 = 20,217.09 : x - Step 2: Convert to fraction form
83,397.21/125,096.06 = 20,217.09/x - Step 3: Cross multiply
83,397.21x = 125,096.06 × 20,217.09 - Step 4: Simplify right side
83,397.21x = 2,529,078,303.67 - Step 5: Solve for x
x = 2,529,078,303.67/83,397.21 - Step 6: Final answer
x = 30,325.69
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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.