Finding the Fourth Proportional to 87,260.26, 130,631.82 and 53,872.96
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Solution
The fourth proportional to 87,260.26, 130,631.82 and 53,872.96 is: 80,649.80
Step by Step Solution
- Step 1: Write the proportion equation
87,260.26 : 130,631.82 = 53,872.96 : x - Step 2: Convert to fraction form
87,260.26/130,631.82 = 53,872.96/x - Step 3: Cross multiply
87,260.26x = 130,631.82 × 53,872.96 - Step 4: Simplify right side
87,260.26x = 7,037,522,813.59 - Step 5: Solve for x
x = 7,037,522,813.59/87,260.26 - Step 6: Final answer
x = 80,649.80
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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.