Finding the Fourth Proportional to 72,119.31, 108,183.58 and 27,746.07
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Solution
The fourth proportional to 72,119.31, 108,183.58 and 27,746.07 is: 41,620.88
Step by Step Solution
- Step 1: Write the proportion equation
72,119.31 : 108,183.58 = 27,746.07 : x - Step 2: Convert to fraction form
72,119.31/108,183.58 = 27,746.07/x - Step 3: Cross multiply
72,119.31x = 108,183.58 × 27,746.07 - Step 4: Simplify right side
72,119.31x = 3,001,669,168.81 - Step 5: Solve for x
x = 3,001,669,168.81/72,119.31 - Step 6: Final answer
x = 41,620.88
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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.