Finding the Fourth Proportional to 87,855.95, 131,796.80 and 27,864.41
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Solution
The fourth proportional to 87,855.95, 131,796.80 and 27,864.41 is: 41,800.70
Step by Step Solution
- Step 1: Write the proportion equation
87,855.95 : 131,796.80 = 27,864.41 : x - Step 2: Convert to fraction form
87,855.95/131,796.80 = 27,864.41/x - Step 3: Cross multiply
87,855.95x = 131,796.80 × 27,864.41 - Step 4: Simplify right side
87,855.95x = 3,672,440,262.06 - Step 5: Solve for x
x = 3,672,440,262.06/87,855.95 - Step 6: Final answer
x = 41,800.70
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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.