Finding the Fourth Proportional to 75,858.18, 113,694.90 and 53,677.98
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Solution
The fourth proportional to 75,858.18, 113,694.90 and 53,677.98 is: 80,451.61
Step by Step Solution
- Step 1: Write the proportion equation
75,858.18 : 113,694.90 = 53,677.98 : x - Step 2: Convert to fraction form
75,858.18/113,694.90 = 53,677.98/x - Step 3: Cross multiply
75,858.18x = 113,694.90 × 53,677.98 - Step 4: Simplify right side
75,858.18x = 6,102,912,568.30 - Step 5: Solve for x
x = 6,102,912,568.30/75,858.18 - Step 6: Final answer
x = 80,451.61
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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.