Finding the Fourth Proportional to 67,155.05, 100,697.91 and 19,763.99
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Solution
The fourth proportional to 67,155.05, 100,697.91 and 19,763.99 is: 29,635.78
Step by Step Solution
- Step 1: Write the proportion equation
67,155.05 : 100,697.91 = 19,763.99 : x - Step 2: Convert to fraction form
67,155.05/100,697.91 = 19,763.99/x - Step 3: Cross multiply
67,155.05x = 100,697.91 × 19,763.99 - Step 4: Simplify right side
67,155.05x = 1,990,192,387.44 - Step 5: Solve for x
x = 1,990,192,387.44/67,155.05 - Step 6: Final answer
x = 29,635.78
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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.