Finding the Fourth Proportional to 87,201.42, 130,879.90 and 40,480.62
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Solution
The fourth proportional to 87,201.42, 130,879.90 and 40,480.62 is: 60,757.03
Step by Step Solution
- Step 1: Write the proportion equation
87,201.42 : 130,879.90 = 40,480.62 : x - Step 2: Convert to fraction form
87,201.42/130,879.90 = 40,480.62/x - Step 3: Cross multiply
87,201.42x = 130,879.90 × 40,480.62 - Step 4: Simplify right side
87,201.42x = 5,298,099,497.54 - Step 5: Solve for x
x = 5,298,099,497.54/87,201.42 - Step 6: Final answer
x = 60,757.03
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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.