Finding the Fourth Proportional to 73,878.40, 110,817.60 and 27,125.20
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Solution
The fourth proportional to 73,878.40, 110,817.60 and 27,125.20 is: 40,687.80
Step by Step Solution
- Step 1: Write the proportion equation
73,878.40 : 110,817.60 = 27,125.20 : x - Step 2: Convert to fraction form
73,878.40/110,817.60 = 27,125.20/x - Step 3: Cross multiply
73,878.40x = 110,817.60 × 27,125.20 - Step 4: Simplify right side
73,878.40x = 3,005,949,563.52 - Step 5: Solve for x
x = 3,005,949,563.52/73,878.40 - Step 6: Final answer
x = 40,687.80
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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.