Finding the Fourth Proportional to 76,027.70, 114,039.75 and 20,623.70
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Solution
The fourth proportional to 76,027.70, 114,039.75 and 20,623.70 is: 30,935.06
Step by Step Solution
- Step 1: Write the proportion equation
76,027.70 : 114,039.75 = 20,623.70 : x - Step 2: Convert to fraction form
76,027.70/114,039.75 = 20,623.70/x - Step 3: Cross multiply
76,027.70x = 114,039.75 × 20,623.70 - Step 4: Simplify right side
76,027.70x = 2,351,921,592.08 - Step 5: Solve for x
x = 2,351,921,592.08/76,027.70 - Step 6: Final answer
x = 30,935.06
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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.