Finding the Fourth Proportional to 81,392.28, 122,079.04 and 22,232.72
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Solution
The fourth proportional to 81,392.28, 122,079.04 and 22,232.72 is: 33,346.52
Step by Step Solution
- Step 1: Write the proportion equation
81,392.28 : 122,079.04 = 22,232.72 : x - Step 2: Convert to fraction form
81,392.28/122,079.04 = 22,232.72/x - Step 3: Cross multiply
81,392.28x = 122,079.04 × 22,232.72 - Step 4: Simplify right side
81,392.28x = 2,714,149,114.19 - Step 5: Solve for x
x = 2,714,149,114.19/81,392.28 - Step 6: Final answer
x = 33,346.52
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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.