Finding the Fourth Proportional to 79,890.99, 110,229.90 and 48,838.43
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Solution
The fourth proportional to 79,890.99, 110,229.90 and 48,838.43 is: 67,385.00
Step by Step Solution
- Step 1: Write the proportion equation
79,890.99 : 110,229.90 = 48,838.43 : x - Step 2: Convert to fraction form
79,890.99/110,229.90 = 48,838.43/x - Step 3: Cross multiply
79,890.99x = 110,229.90 × 48,838.43 - Step 4: Simplify right side
79,890.99x = 5,383,454,703.91 - Step 5: Solve for x
x = 5,383,454,703.91/79,890.99 - Step 6: Final answer
x = 67,385.00
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.