Finding the Fourth Proportional to 76,313.84, 114,468.97 and 20,157.87
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Solution
The fourth proportional to 76,313.84, 114,468.97 and 20,157.87 is: 30,236.33
Step by Step Solution
- Step 1: Write the proportion equation
76,313.84 : 114,468.97 = 20,157.87 : x - Step 2: Convert to fraction form
76,313.84/114,468.97 = 20,157.87/x - Step 3: Cross multiply
76,313.84x = 114,468.97 × 20,157.87 - Step 4: Simplify right side
76,313.84x = 2,307,450,212.23 - Step 5: Solve for x
x = 2,307,450,212.23/76,313.84 - Step 6: Final answer
x = 30,236.33
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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.