Finding the Fourth Proportional to 74,007.24, 110,981.64 and 29,625.72
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Solution
The fourth proportional to 74,007.24, 110,981.64 and 29,625.72 is: 44,426.88
Step by Step Solution
- Step 1: Write the proportion equation
74,007.24 : 110,981.64 = 29,625.72 : x - Step 2: Convert to fraction form
74,007.24/110,981.64 = 29,625.72/x - Step 3: Cross multiply
74,007.24x = 110,981.64 × 29,625.72 - Step 4: Simplify right side
74,007.24x = 3,287,910,991.78 - Step 5: Solve for x
x = 3,287,910,991.78/74,007.24 - Step 6: Final answer
x = 44,426.88
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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.