Finding the Fourth Proportional to 75,615.94, 113,358.29 and 38,144.73
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Solution
The fourth proportional to 75,615.94, 113,358.29 and 38,144.73 is: 57,183.99
Step by Step Solution
- Step 1: Write the proportion equation
75,615.94 : 113,358.29 = 38,144.73 : x - Step 2: Convert to fraction form
75,615.94/113,358.29 = 38,144.73/x - Step 3: Cross multiply
75,615.94x = 113,358.29 × 38,144.73 - Step 4: Simplify right side
75,615.94x = 4,324,020,607.80 - Step 5: Solve for x
x = 4,324,020,607.80/75,615.94 - Step 6: Final answer
x = 57,183.99
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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.