Finding the Fourth Proportional to 75,965.20, 113,860.92 and 47,515.08
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Solution
The fourth proportional to 75,965.20, 113,860.92 and 47,515.08 is: 71,218.28
Step by Step Solution
- Step 1: Write the proportion equation
75,965.20 : 113,860.92 = 47,515.08 : x - Step 2: Convert to fraction form
75,965.20/113,860.92 = 47,515.08/x - Step 3: Cross multiply
75,965.20x = 113,860.92 × 47,515.08 - Step 4: Simplify right side
75,965.20x = 5,410,110,722.67 - Step 5: Solve for x
x = 5,410,110,722.67/75,965.20 - Step 6: Final answer
x = 71,218.28
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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.