Finding the Fourth Proportional to 74,576.08, 102,929.12 and 47,729.96
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Solution
The fourth proportional to 74,576.08, 102,929.12 and 47,729.96 is: 65,876.39
Step by Step Solution
- Step 1: Write the proportion equation
74,576.08 : 102,929.12 = 47,729.96 : x - Step 2: Convert to fraction form
74,576.08/102,929.12 = 47,729.96/x - Step 3: Cross multiply
74,576.08x = 102,929.12 × 47,729.96 - Step 4: Simplify right side
74,576.08x = 4,912,802,780.44 - Step 5: Solve for x
x = 4,912,802,780.44/74,576.08 - Step 6: Final answer
x = 65,876.39
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.