Finding the Fourth Proportional to 81,484.96, 122,181.36 and 48,209.44
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Solution
The fourth proportional to 81,484.96, 122,181.36 and 48,209.44 is: 72,286.90
Step by Step Solution
- Step 1: Write the proportion equation
81,484.96 : 122,181.36 = 48,209.44 : x - Step 2: Convert to fraction form
81,484.96/122,181.36 = 48,209.44/x - Step 3: Cross multiply
81,484.96x = 122,181.36 × 48,209.44 - Step 4: Simplify right side
81,484.96x = 5,890,294,944.04 - Step 5: Solve for x
x = 5,890,294,944.04/81,484.96 - Step 6: Final answer
x = 72,286.90
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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.