Finding the Fourth Proportional to 87,576.74, 131,408.03 and 54,287.99
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Solution
The fourth proportional to 87,576.74, 131,408.03 and 54,287.99 is: 81,458.59
Step by Step Solution
- Step 1: Write the proportion equation
87,576.74 : 131,408.03 = 54,287.99 : x - Step 2: Convert to fraction form
87,576.74/131,408.03 = 54,287.99/x - Step 3: Cross multiply
87,576.74x = 131,408.03 × 54,287.99 - Step 4: Simplify right side
87,576.74x = 7,133,877,297.24 - Step 5: Solve for x
x = 7,133,877,297.24/87,576.74 - Step 6: Final answer
x = 81,458.59
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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.