Finding the Fourth Proportional to 73,821.20, 110,731.80 and 27,092.30
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Solution
The fourth proportional to 73,821.20, 110,731.80 and 27,092.30 is: 40,638.45
Step by Step Solution
- Step 1: Write the proportion equation
73,821.20 : 110,731.80 = 27,092.30 : x - Step 2: Convert to fraction form
73,821.20/110,731.80 = 27,092.30/x - Step 3: Cross multiply
73,821.20x = 110,731.80 × 27,092.30 - Step 4: Simplify right side
73,821.20x = 2,999,979,145.14 - Step 5: Solve for x
x = 2,999,979,145.14/73,821.20 - Step 6: Final answer
x = 40,638.45
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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.