Finding the Fourth Proportional to 74,048.20, 110,975.10 and 29,638.60
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Solution
The fourth proportional to 74,048.20, 110,975.10 and 29,638.60 is: 44,418.99
Step by Step Solution
- Step 1: Write the proportion equation
74,048.20 : 110,975.10 = 29,638.60 : x - Step 2: Convert to fraction form
74,048.20/110,975.10 = 29,638.60/x - Step 3: Cross multiply
74,048.20x = 110,975.10 × 29,638.60 - Step 4: Simplify right side
74,048.20x = 3,289,146,598.86 - Step 5: Solve for x
x = 3,289,146,598.86/74,048.20 - Step 6: Final answer
x = 44,418.99
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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.