Finding the Fourth Proportional to 79,872.94, 110,237.70 and 48,059.38
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Solution
The fourth proportional to 79,872.94, 110,237.70 and 48,059.38 is: 66,329.79
Step by Step Solution
- Step 1: Write the proportion equation
79,872.94 : 110,237.70 = 48,059.38 : x - Step 2: Convert to fraction form
79,872.94/110,237.70 = 48,059.38/x - Step 3: Cross multiply
79,872.94x = 110,237.70 × 48,059.38 - Step 4: Simplify right side
79,872.94x = 5,297,955,514.63 - Step 5: Solve for x
x = 5,297,955,514.63/79,872.94 - Step 6: Final answer
x = 66,329.79
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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.