Finding the Fourth Proportional to 86,601.38, 129,905.84 and 27,441.41
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Solution
The fourth proportional to 86,601.38, 129,905.84 and 27,441.41 is: 41,163.31
Step by Step Solution
- Step 1: Write the proportion equation
86,601.38 : 129,905.84 = 27,441.41 : x - Step 2: Convert to fraction form
86,601.38/129,905.84 = 27,441.41/x - Step 3: Cross multiply
86,601.38x = 129,905.84 × 27,441.41 - Step 4: Simplify right side
86,601.38x = 3,564,798,835.91 - Step 5: Solve for x
x = 3,564,798,835.91/86,601.38 - Step 6: Final answer
x = 41,163.31
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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.