Finding the Fourth Proportional to 80,502.53, 120,809.14 and 27,911.99
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Solution
The fourth proportional to 80,502.53, 120,809.14 and 27,911.99 is: 41,887.18
Step by Step Solution
- Step 1: Write the proportion equation
80,502.53 : 120,809.14 = 27,911.99 : x - Step 2: Convert to fraction form
80,502.53/120,809.14 = 27,911.99/x - Step 3: Cross multiply
80,502.53x = 120,809.14 × 27,911.99 - Step 4: Simplify right side
80,502.53x = 3,372,023,739.83 - Step 5: Solve for x
x = 3,372,023,739.83/80,502.53 - Step 6: Final answer
x = 41,887.18
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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.