Finding the Fourth Proportional to 81,998.44, 122,998.74 and 22,832.68
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Solution
The fourth proportional to 81,998.44, 122,998.74 and 22,832.68 is: 34,249.32
Step by Step Solution
- Step 1: Write the proportion equation
81,998.44 : 122,998.74 = 22,832.68 : x - Step 2: Convert to fraction form
81,998.44/122,998.74 = 22,832.68/x - Step 3: Cross multiply
81,998.44x = 122,998.74 × 22,832.68 - Step 4: Simplify right side
81,998.44x = 2,808,390,870.82 - Step 5: Solve for x
x = 2,808,390,870.82/81,998.44 - Step 6: Final answer
x = 34,249.32
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1.5x scale
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.