Finding the Fourth Proportional to 75,361.76, 103,977.92 and 48,519.81
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Solution
The fourth proportional to 75,361.76, 103,977.92 and 48,519.81 is: 66,943.62
Step by Step Solution
- Step 1: Write the proportion equation
75,361.76 : 103,977.92 = 48,519.81 : x - Step 2: Convert to fraction form
75,361.76/103,977.92 = 48,519.81/x - Step 3: Cross multiply
75,361.76x = 103,977.92 × 48,519.81 - Step 4: Simplify right side
75,361.76x = 5,044,988,922.60 - Step 5: Solve for x
x = 5,044,988,922.60/75,361.76 - Step 6: Final answer
x = 66,943.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.