Finding the Fourth Proportional to 81,890.04, 122,843.84 and 22,725.96
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Solution
The fourth proportional to 81,890.04, 122,843.84 and 22,725.96 is: 34,091.38
Step by Step Solution
- Step 1: Write the proportion equation
81,890.04 : 122,843.84 = 22,725.96 : x - Step 2: Convert to fraction form
81,890.04/122,843.84 = 22,725.96/x - Step 3: Cross multiply
81,890.04x = 122,843.84 × 22,725.96 - Step 4: Simplify right side
81,890.04x = 2,791,744,194.09 - Step 5: Solve for x
x = 2,791,744,194.09/81,890.04 - Step 6: Final answer
x = 34,091.38
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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.