Finding the Fourth Proportional to 75,697.88, 104,467.74 and 42,163.88
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Solution
The fourth proportional to 75,697.88, 104,467.74 and 42,163.88 is: 58,188.75
Step by Step Solution
- Step 1: Write the proportion equation
75,697.88 : 104,467.74 = 42,163.88 : x - Step 2: Convert to fraction form
75,697.88/104,467.74 = 42,163.88/x - Step 3: Cross multiply
75,697.88x = 104,467.74 × 42,163.88 - Step 4: Simplify right side
75,697.88x = 4,404,765,253.23 - Step 5: Solve for x
x = 4,404,765,253.23/75,697.88 - Step 6: Final answer
x = 58,188.75
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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.