Finding the Fourth Proportional to 87,533.68, 131,336.16 and 40,757.80
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Solution
The fourth proportional to 87,533.68, 131,336.16 and 40,757.80 is: 61,153.29
Step by Step Solution
- Step 1: Write the proportion equation
87,533.68 : 131,336.16 = 40,757.80 : x - Step 2: Convert to fraction form
87,533.68/131,336.16 = 40,757.80/x - Step 3: Cross multiply
87,533.68x = 131,336.16 × 40,757.80 - Step 4: Simplify right side
87,533.68x = 5,352,972,942.05 - Step 5: Solve for x
x = 5,352,972,942.05/87,533.68 - Step 6: Final answer
x = 61,153.29
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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.