Finding the Fourth Proportional to 80,485.18, 120,749.24 and 27,894.62
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Solution
The fourth proportional to 80,485.18, 120,749.24 and 27,894.62 is: 41,849.37
Step by Step Solution
- Step 1: Write the proportion equation
80,485.18 : 120,749.24 = 27,894.62 : x - Step 2: Convert to fraction form
80,485.18/120,749.24 = 27,894.62/x - Step 3: Cross multiply
80,485.18x = 120,749.24 × 27,894.62 - Step 4: Simplify right side
80,485.18x = 3,368,254,165.09 - Step 5: Solve for x
x = 3,368,254,165.09/80,485.18 - Step 6: Final answer
x = 41,849.37
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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.