Finding the Fourth Proportional to 81,942.37, 122,811.43 and 29,293.99
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Solution
The fourth proportional to 81,942.37, 122,811.43 and 29,293.99 is: 43,904.48
Step by Step Solution
- Step 1: Write the proportion equation
81,942.37 : 122,811.43 = 29,293.99 : x - Step 2: Convert to fraction form
81,942.37/122,811.43 = 29,293.99/x - Step 3: Cross multiply
81,942.37x = 122,811.43 × 29,293.99 - Step 4: Simplify right side
81,942.37x = 3,597,636,802.31 - Step 5: Solve for x
x = 3,597,636,802.31/81,942.37 - Step 6: Final answer
x = 43,904.48
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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.