Finding the Fourth Proportional to 74,147.81, 111,198.68 and 26,756.75
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Solution
The fourth proportional to 74,147.81, 111,198.68 and 26,756.75 is: 40,126.82
Step by Step Solution
- Step 1: Write the proportion equation
74,147.81 : 111,198.68 = 26,756.75 : x - Step 2: Convert to fraction form
74,147.81/111,198.68 = 26,756.75/x - Step 3: Cross multiply
74,147.81x = 111,198.68 × 26,756.75 - Step 4: Simplify right side
74,147.81x = 2,975,315,525.64 - Step 5: Solve for x
x = 2,975,315,525.64/74,147.81 - Step 6: Final answer
x = 40,126.82
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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.