Finding the Fourth Proportional to 75,676.28, 113,514.58 and 28,933.88
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Solution
The fourth proportional to 75,676.28, 113,514.58 and 28,933.88 is: 43,400.88
Step by Step Solution
- Step 1: Write the proportion equation
75,676.28 : 113,514.58 = 28,933.88 : x - Step 2: Convert to fraction form
75,676.28/113,514.58 = 28,933.88/x - Step 3: Cross multiply
75,676.28x = 113,514.58 × 28,933.88 - Step 4: Simplify right side
75,676.28x = 3,284,417,235.97 - Step 5: Solve for x
x = 3,284,417,235.97/75,676.28 - Step 6: Final answer
x = 43,400.88
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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.