Finding the Fourth Proportional to 79,917.63, 110,286.56 and 43,619.41
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Solution
The fourth proportional to 79,917.63, 110,286.56 and 43,619.41 is: 60,194.91
Step by Step Solution
- Step 1: Write the proportion equation
79,917.63 : 110,286.56 = 43,619.41 : x - Step 2: Convert to fraction form
79,917.63/110,286.56 = 43,619.41/x - Step 3: Cross multiply
79,917.63x = 110,286.56 × 43,619.41 - Step 4: Simplify right side
79,917.63x = 4,810,634,678.13 - Step 5: Solve for x
x = 4,810,634,678.13/79,917.63 - Step 6: Final answer
x = 60,194.91
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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.