Finding the Fourth Proportional to 90,676.62, 125,136.89 and 50,392.08
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Solution
The fourth proportional to 90,676.62, 125,136.89 and 50,392.08 is: 69,542.82
Step by Step Solution
- Step 1: Write the proportion equation
90,676.62 : 125,136.89 = 50,392.08 : x - Step 2: Convert to fraction form
90,676.62/125,136.89 = 50,392.08/x - Step 3: Cross multiply
90,676.62x = 125,136.89 × 50,392.08 - Step 4: Simplify right side
90,676.62x = 6,305,907,919.87 - Step 5: Solve for x
x = 6,305,907,919.87/90,676.62 - Step 6: Final answer
x = 69,542.82
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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.