Finding the Fourth Proportional to 73,163.40, 109,745.10 and 58,291.80
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Solution
The fourth proportional to 73,163.40, 109,745.10 and 58,291.80 is: 87,437.70
Step by Step Solution
- Step 1: Write the proportion equation
73,163.40 : 109,745.10 = 58,291.80 : x - Step 2: Convert to fraction form
73,163.40/109,745.10 = 58,291.80/x - Step 3: Cross multiply
73,163.40x = 109,745.10 × 58,291.80 - Step 4: Simplify right side
73,163.40x = 6,397,239,420.18 - Step 5: Solve for x
x = 6,397,239,420.18/73,163.40 - Step 6: Final answer
x = 87,437.70
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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.