Finding the Fourth Proportional to 89,765.41, 134,687.09 and 48,163.81
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Solution
The fourth proportional to 89,765.41, 134,687.09 and 48,163.81 is: 72,266.63
Step by Step Solution
- Step 1: Write the proportion equation
89,765.41 : 134,687.09 = 48,163.81 : x - Step 2: Convert to fraction form
89,765.41/134,687.09 = 48,163.81/x - Step 3: Cross multiply
89,765.41x = 134,687.09 × 48,163.81 - Step 4: Simplify right side
89,765.41x = 6,487,043,412.21 - Step 5: Solve for x
x = 6,487,043,412.21/89,765.41 - Step 6: Final answer
x = 72,266.63
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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.