Finding the Fourth Proportional to 81,628.36, 122,443.14 and 22,467.28
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Solution
The fourth proportional to 81,628.36, 122,443.14 and 22,467.28 is: 33,701.09
Step by Step Solution
- Step 1: Write the proportion equation
81,628.36 : 122,443.14 = 22,467.28 : x - Step 2: Convert to fraction form
81,628.36/122,443.14 = 22,467.28/x - Step 3: Cross multiply
81,628.36x = 122,443.14 × 22,467.28 - Step 4: Simplify right side
81,628.36x = 2,750,964,310.46 - Step 5: Solve for x
x = 2,750,964,310.46/81,628.36 - Step 6: Final answer
x = 33,701.09
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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.