Finding the Fourth Proportional to 75,669.09, 113,444.78 and 48,958.64
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Solution
The fourth proportional to 75,669.09, 113,444.78 and 48,958.64 is: 73,399.88
Step by Step Solution
- Step 1: Write the proportion equation
75,669.09 : 113,444.78 = 48,958.64 : x - Step 2: Convert to fraction form
75,669.09/113,444.78 = 48,958.64/x - Step 3: Cross multiply
75,669.09x = 113,444.78 × 48,958.64 - Step 4: Simplify right side
75,669.09x = 5,554,101,757.30 - Step 5: Solve for x
x = 5,554,101,757.30/75,669.09 - Step 6: Final answer
x = 73,399.88
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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.