Finding the Fourth Proportional to 87,749.01, 121,093.50 and 49,508.50
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Solution
The fourth proportional to 87,749.01, 121,093.50 and 49,508.50 is: 68,321.65
Step by Step Solution
- Step 1: Write the proportion equation
87,749.01 : 121,093.50 = 49,508.50 : x - Step 2: Convert to fraction form
87,749.01/121,093.50 = 49,508.50/x - Step 3: Cross multiply
87,749.01x = 121,093.50 × 49,508.50 - Step 4: Simplify right side
87,749.01x = 5,995,157,544.75 - Step 5: Solve for x
x = 5,995,157,544.75/87,749.01 - Step 6: Final answer
x = 68,321.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.