Finding the Fourth Proportional to 87,535.08, 120,785.30 and 49,289.08
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Solution
The fourth proportional to 87,535.08, 120,785.30 and 49,289.08 is: 68,011.55
Step by Step Solution
- Step 1: Write the proportion equation
87,535.08 : 120,785.30 = 49,289.08 : x - Step 2: Convert to fraction form
87,535.08/120,785.30 = 49,289.08/x - Step 3: Cross multiply
87,535.08x = 120,785.30 × 49,289.08 - Step 4: Simplify right side
87,535.08x = 5,953,396,314.52 - Step 5: Solve for x
x = 5,953,396,314.52/87,535.08 - Step 6: Final answer
x = 68,011.55
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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.