Finding the Fourth Proportional to 81,817.20, 122,725.44 and 22,652.28
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Solution
The fourth proportional to 81,817.20, 122,725.44 and 22,652.28 is: 33,978.32
Step by Step Solution
- Step 1: Write the proportion equation
81,817.20 : 122,725.44 = 22,652.28 : x - Step 2: Convert to fraction form
81,817.20/122,725.44 = 22,652.28/x - Step 3: Cross multiply
81,817.20x = 122,725.44 × 22,652.28 - Step 4: Simplify right side
81,817.20x = 2,780,011,030.00 - Step 5: Solve for x
x = 2,780,011,030.00/81,817.20 - Step 6: Final answer
x = 33,978.32
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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.