Finding the Fourth Proportional to 74,877.12, 112,278.12 and 24,939.66
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Solution
The fourth proportional to 74,877.12, 112,278.12 and 24,939.66 is: 37,396.98
Step by Step Solution
- Step 1: Write the proportion equation
74,877.12 : 112,278.12 = 24,939.66 : x - Step 2: Convert to fraction form
74,877.12/112,278.12 = 24,939.66/x - Step 3: Cross multiply
74,877.12x = 112,278.12 × 24,939.66 - Step 4: Simplify right side
74,877.12x = 2,800,178,138.24 - Step 5: Solve for x
x = 2,800,178,138.24/74,877.12 - Step 6: Final answer
x = 37,396.98
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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.