Finding the Fourth Proportional to 67,428.99, 101,156.49 and 25,872.75
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Solution
The fourth proportional to 67,428.99, 101,156.49 and 25,872.75 is: 38,814.12
Step by Step Solution
- Step 1: Write the proportion equation
67,428.99 : 101,156.49 = 25,872.75 : x - Step 2: Convert to fraction form
67,428.99/101,156.49 = 25,872.75/x - Step 3: Cross multiply
67,428.99x = 101,156.49 × 25,872.75 - Step 4: Simplify right side
67,428.99x = 2,617,196,576.65 - Step 5: Solve for x
x = 2,617,196,576.65/67,428.99 - Step 6: Final answer
x = 38,814.12
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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.