Finding the Fourth Proportional to 81,874.13, 122,811.19 and 32,660.69
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Solution
The fourth proportional to 81,874.13, 122,811.19 and 32,660.69 is: 48,991.03
Step by Step Solution
- Step 1: Write the proportion equation
81,874.13 : 122,811.19 = 32,660.69 : x - Step 2: Convert to fraction form
81,874.13/122,811.19 = 32,660.69/x - Step 3: Cross multiply
81,874.13x = 122,811.19 × 32,660.69 - Step 4: Simplify right side
81,874.13x = 4,011,097,509.41 - Step 5: Solve for x
x = 4,011,097,509.41/81,874.13 - Step 6: Final answer
x = 48,991.03
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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.