Finding the Fourth Proportional to 84,554.05, 126,832.61 and 30,516.55
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Solution
The fourth proportional to 84,554.05, 126,832.61 and 30,516.55 is: 45,775.37
Step by Step Solution
- Step 1: Write the proportion equation
84,554.05 : 126,832.61 = 30,516.55 : x - Step 2: Convert to fraction form
84,554.05/126,832.61 = 30,516.55/x - Step 3: Cross multiply
84,554.05x = 126,832.61 × 30,516.55 - Step 4: Simplify right side
84,554.05x = 3,870,493,358.08 - Step 5: Solve for x
x = 3,870,493,358.08/84,554.05 - Step 6: Final answer
x = 45,775.37
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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.