Finding the Fourth Proportional to 81,873.21, 122,809.81 and 22,708.88
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Solution
The fourth proportional to 81,873.21, 122,809.81 and 22,708.88 is: 34,063.32
Step by Step Solution
- Step 1: Write the proportion equation
81,873.21 : 122,809.81 = 22,708.88 : x - Step 2: Convert to fraction form
81,873.21/122,809.81 = 22,708.88/x - Step 3: Cross multiply
81,873.21x = 122,809.81 × 22,708.88 - Step 4: Simplify right side
81,873.21x = 2,788,873,383.88 - Step 5: Solve for x
x = 2,788,873,383.88/81,873.21 - Step 6: Final answer
x = 34,063.32
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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.