Finding the Fourth Proportional to 81,941.37, 122,809.93 and 29,292.99
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Solution
The fourth proportional to 81,941.37, 122,809.93 and 29,292.99 is: 43,902.98
Step by Step Solution
- Step 1: Write the proportion equation
81,941.37 : 122,809.93 = 29,292.99 : x - Step 2: Convert to fraction form
81,941.37/122,809.93 = 29,292.99/x - Step 3: Cross multiply
81,941.37x = 122,809.93 × 29,292.99 - Step 4: Simplify right side
81,941.37x = 3,597,470,051.39 - Step 5: Solve for x
x = 3,597,470,051.39/81,941.37 - Step 6: Final answer
x = 43,902.98
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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.