Finding the Fourth Proportional to 79,898.22, 110,299.46 and 49,693.28
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Solution
The fourth proportional to 79,898.22, 110,299.46 and 49,693.28 is: 68,601.55
Step by Step Solution
- Step 1: Write the proportion equation
79,898.22 : 110,299.46 = 49,693.28 : x - Step 2: Convert to fraction form
79,898.22/110,299.46 = 49,693.28/x - Step 3: Cross multiply
79,898.22x = 110,299.46 × 49,693.28 - Step 4: Simplify right side
79,898.22x = 5,481,141,949.63 - Step 5: Solve for x
x = 5,481,141,949.63/79,898.22 - Step 6: Final answer
x = 68,601.55
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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.