Finding the Fourth Proportional to 68,029.23, 102,021.16 and 28,578.99
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Solution
The fourth proportional to 68,029.23, 102,021.16 and 28,578.99 is: 42,858.96
Step by Step Solution
- Step 1: Write the proportion equation
68,029.23 : 102,021.16 = 28,578.99 : x - Step 2: Convert to fraction form
68,029.23/102,021.16 = 28,578.99/x - Step 3: Cross multiply
68,029.23x = 102,021.16 × 28,578.99 - Step 4: Simplify right side
68,029.23x = 2,915,661,711.43 - Step 5: Solve for x
x = 2,915,661,711.43/68,029.23 - Step 6: Final answer
x = 42,858.96
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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.