Finding the Fourth Proportional to 80,576.96, 120,699.35 and 47,195.81
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Solution
The fourth proportional to 80,576.96, 120,699.35 and 47,195.81 is: 70,696.45
Step by Step Solution
- Step 1: Write the proportion equation
80,576.96 : 120,699.35 = 47,195.81 : x - Step 2: Convert to fraction form
80,576.96/120,699.35 = 47,195.81/x - Step 3: Cross multiply
80,576.96x = 120,699.35 × 47,195.81 - Step 4: Simplify right side
80,576.96x = 5,696,504,324.26 - Step 5: Solve for x
x = 5,696,504,324.26/80,576.96 - Step 6: Final answer
x = 70,696.45
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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.