Finding the Fourth Proportional to 81,718.80, 122,575.76 and 22,558.08
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Solution
The fourth proportional to 81,718.80, 122,575.76 and 22,558.08 is: 33,836.45
Step by Step Solution
- Step 1: Write the proportion equation
81,718.80 : 122,575.76 = 22,558.08 : x - Step 2: Convert to fraction form
81,718.80/122,575.76 = 22,558.08/x - Step 3: Cross multiply
81,718.80x = 122,575.76 × 22,558.08 - Step 4: Simplify right side
81,718.80x = 2,765,073,800.14 - Step 5: Solve for x
x = 2,765,073,800.14/81,718.80 - Step 6: Final answer
x = 33,836.45
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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.