Finding the Fourth Proportional to 75,717.99, 113,578.81 and 36,231.71
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Solution
The fourth proportional to 75,717.99, 113,578.81 and 36,231.71 is: 54,348.43
Step by Step Solution
- Step 1: Write the proportion equation
75,717.99 : 113,578.81 = 36,231.71 : x - Step 2: Convert to fraction form
75,717.99/113,578.81 = 36,231.71/x - Step 3: Cross multiply
75,717.99x = 113,578.81 × 36,231.71 - Step 4: Simplify right side
75,717.99x = 4,115,153,847.59 - Step 5: Solve for x
x = 4,115,153,847.59/75,717.99 - Step 6: Final answer
x = 54,348.43
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1.5x scale
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.