Finding the Fourth Proportional to 71,806.68, 107,709.66 and 30,253.68
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Solution
The fourth proportional to 71,806.68, 107,709.66 and 30,253.68 is: 45,380.37
Step by Step Solution
- Step 1: Write the proportion equation
71,806.68 : 107,709.66 = 30,253.68 : x - Step 2: Convert to fraction form
71,806.68/107,709.66 = 30,253.68/x - Step 3: Cross multiply
71,806.68x = 107,709.66 × 30,253.68 - Step 4: Simplify right side
71,806.68x = 3,258,613,586.55 - Step 5: Solve for x
x = 3,258,613,586.55/71,806.68 - Step 6: Final answer
x = 45,380.37
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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.