Finding the Fourth Proportional to 81,582.41, 122,373.62 and 28,993.97
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Solution
The fourth proportional to 81,582.41, 122,373.62 and 28,993.97 is: 43,490.95
Step by Step Solution
- Step 1: Write the proportion equation
81,582.41 : 122,373.62 = 28,993.97 : x - Step 2: Convert to fraction form
81,582.41/122,373.62 = 28,993.97/x - Step 3: Cross multiply
81,582.41x = 122,373.62 × 28,993.97 - Step 4: Simplify right side
81,582.41x = 3,548,096,310.23 - Step 5: Solve for x
x = 3,548,096,310.23/81,582.41 - Step 6: Final answer
x = 43,490.95
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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.