Finding the Fourth Proportional to 75,358.58, 103,989.12 and 41,361.66
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Solution
The fourth proportional to 75,358.58, 103,989.12 and 41,361.66 is: 57,075.95
Step by Step Solution
- Step 1: Write the proportion equation
75,358.58 : 103,989.12 = 41,361.66 : x - Step 2: Convert to fraction form
75,358.58/103,989.12 = 41,361.66/x - Step 3: Cross multiply
75,358.58x = 103,989.12 × 41,361.66 - Step 4: Simplify right side
75,358.58x = 4,301,162,625.14 - Step 5: Solve for x
x = 4,301,162,625.14/75,358.58 - Step 6: Final answer
x = 57,075.95
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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.