Finding the Fourth Proportional to 75,163.21, 103,675.30 and 48,339.64
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Solution
The fourth proportional to 75,163.21, 103,675.30 and 48,339.64 is: 66,676.59
Step by Step Solution
- Step 1: Write the proportion equation
75,163.21 : 103,675.30 = 48,339.64 : x - Step 2: Convert to fraction form
75,163.21/103,675.30 = 48,339.64/x - Step 3: Cross multiply
75,163.21x = 103,675.30 × 48,339.64 - Step 4: Simplify right side
75,163.21x = 5,011,626,678.89 - Step 5: Solve for x
x = 5,011,626,678.89/75,163.21 - Step 6: Final answer
x = 66,676.59
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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.