Finding the Fourth Proportional to 73,716.40, 110,491.76 and 29,331.20
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Solution
The fourth proportional to 73,716.40, 110,491.76 and 29,331.20 is: 43,963.84
Step by Step Solution
- Step 1: Write the proportion equation
73,716.40 : 110,491.76 = 29,331.20 : x - Step 2: Convert to fraction form
73,716.40/110,491.76 = 29,331.20/x - Step 3: Cross multiply
73,716.40x = 110,491.76 × 29,331.20 - Step 4: Simplify right side
73,716.40x = 3,240,855,910.91 - Step 5: Solve for x
x = 3,240,855,910.91/73,716.40 - Step 6: Final answer
x = 43,963.84
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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.