Finding the Fourth Proportional to 81,964.89, 122,964.12 and 34,579.99
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Solution
The fourth proportional to 81,964.89, 122,964.12 and 34,579.99 is: 51,877.06
Step by Step Solution
- Step 1: Write the proportion equation
81,964.89 : 122,964.12 = 34,579.99 : x - Step 2: Convert to fraction form
81,964.89/122,964.12 = 34,579.99/x - Step 3: Cross multiply
81,964.89x = 122,964.12 × 34,579.99 - Step 4: Simplify right side
81,964.89x = 4,252,097,732.55 - Step 5: Solve for x
x = 4,252,097,732.55/81,964.89 - Step 6: Final answer
x = 51,877.06
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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.