Finding the Fourth Proportional to 73,409.80, 110,114.70 and 48,785.80
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Solution
The fourth proportional to 73,409.80, 110,114.70 and 48,785.80 is: 73,178.70
Step by Step Solution
- Step 1: Write the proportion equation
73,409.80 : 110,114.70 = 48,785.80 : x - Step 2: Convert to fraction form
73,409.80/110,114.70 = 48,785.80/x - Step 3: Cross multiply
73,409.80x = 110,114.70 × 48,785.80 - Step 4: Simplify right side
73,409.80x = 5,372,033,731.26 - Step 5: Solve for x
x = 5,372,033,731.26/73,409.80 - Step 6: Final answer
x = 73,178.70
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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.