Finding the Fourth Proportional to 75,694.08, 113,541.12 and 28,961.28
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Solution
The fourth proportional to 75,694.08, 113,541.12 and 28,961.28 is: 43,441.92
Step by Step Solution
- Step 1: Write the proportion equation
75,694.08 : 113,541.12 = 28,961.28 : x - Step 2: Convert to fraction form
75,694.08/113,541.12 = 28,961.28/x - Step 3: Cross multiply
75,694.08x = 113,541.12 × 28,961.28 - Step 4: Simplify right side
75,694.08x = 3,288,296,167.83 - Step 5: Solve for x
x = 3,288,296,167.83/75,694.08 - Step 6: Final answer
x = 43,441.92
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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.