Finding the Fourth Proportional to 73,719.75, 110,580.39 and 18,315.75
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Solution
The fourth proportional to 73,719.75, 110,580.39 and 18,315.75 is: 27,473.82
Step by Step Solution
- Step 1: Write the proportion equation
73,719.75 : 110,580.39 = 18,315.75 : x - Step 2: Convert to fraction form
73,719.75/110,580.39 = 18,315.75/x - Step 3: Cross multiply
73,719.75x = 110,580.39 × 18,315.75 - Step 4: Simplify right side
73,719.75x = 2,025,362,778.14 - Step 5: Solve for x
x = 2,025,362,778.14/73,719.75 - Step 6: Final answer
x = 27,473.82
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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.