Finding the Fourth Proportional to 75,496.89, 113,256.21 and 28,107.96
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Solution
The fourth proportional to 75,496.89, 113,256.21 and 28,107.96 is: 42,165.99
Step by Step Solution
- Step 1: Write the proportion equation
75,496.89 : 113,256.21 = 28,107.96 : x - Step 2: Convert to fraction form
75,496.89/113,256.21 = 28,107.96/x - Step 3: Cross multiply
75,496.89x = 113,256.21 × 28,107.96 - Step 4: Simplify right side
75,496.89x = 3,183,401,020.43 - Step 5: Solve for x
x = 3,183,401,020.43/75,496.89 - Step 6: Final answer
x = 42,165.99
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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.