Finding the Fourth Proportional to 81,728.31, 122,599.52 and 22,563.99
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Solution
The fourth proportional to 81,728.31, 122,599.52 and 22,563.99 is: 33,847.93
Step by Step Solution
- Step 1: Write the proportion equation
81,728.31 : 122,599.52 = 22,563.99 : x - Step 2: Convert to fraction form
81,728.31/122,599.52 = 22,563.99/x - Step 3: Cross multiply
81,728.31x = 122,599.52 × 22,563.99 - Step 4: Simplify right side
81,728.31x = 2,766,334,343.28 - Step 5: Solve for x
x = 2,766,334,343.28/81,728.31 - Step 6: Final answer
x = 33,847.93
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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.