Finding the Fourth Proportional to 81,414.72, 122,125.73 and 22,249.08
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Solution
The fourth proportional to 81,414.72, 122,125.73 and 22,249.08 is: 33,374.62
Step by Step Solution
- Step 1: Write the proportion equation
81,414.72 : 122,125.73 = 22,249.08 : x - Step 2: Convert to fraction form
81,414.72/122,125.73 = 22,249.08/x - Step 3: Cross multiply
81,414.72x = 122,125.73 × 22,249.08 - Step 4: Simplify right side
81,414.72x = 2,717,185,025.58 - Step 5: Solve for x
x = 2,717,185,025.58/81,414.72 - Step 6: Final answer
x = 33,374.62
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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.