Finding the Fourth Proportional to 87,324.81, 120,508.24 and 47,580.81
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Solution
The fourth proportional to 87,324.81, 120,508.24 and 47,580.81 is: 65,661.52
Step by Step Solution
- Step 1: Write the proportion equation
87,324.81 : 120,508.24 = 47,580.81 : x - Step 2: Convert to fraction form
87,324.81/120,508.24 = 47,580.81/x - Step 3: Cross multiply
87,324.81x = 120,508.24 × 47,580.81 - Step 4: Simplify right side
87,324.81x = 5,733,880,091.10 - Step 5: Solve for x
x = 5,733,880,091.10/87,324.81 - Step 6: Final answer
x = 65,661.52
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1.5x scale
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.