Finding the Fourth Proportional to 87,759.38, 131,533.30 and 40,308.99
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Solution
The fourth proportional to 87,759.38, 131,533.30 and 40,308.99 is: 60,414.90
Step by Step Solution
- Step 1: Write the proportion equation
87,759.38 : 131,533.30 = 40,308.99 : x - Step 2: Convert to fraction form
87,759.38/131,533.30 = 40,308.99/x - Step 3: Cross multiply
87,759.38x = 131,533.30 × 40,308.99 - Step 4: Simplify right side
87,759.38x = 5,301,974,272.82 - Step 5: Solve for x
x = 5,301,974,272.82/87,759.38 - Step 6: Final answer
x = 60,414.90
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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.