Finding the Fourth Proportional to 76,940.99, 115,426.44 and 29,552.60
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Solution
The fourth proportional to 76,940.99, 115,426.44 and 29,552.60 is: 44,334.64
Step by Step Solution
- Step 1: Write the proportion equation
76,940.99 : 115,426.44 = 29,552.60 : x - Step 2: Convert to fraction form
76,940.99/115,426.44 = 29,552.60/x - Step 3: Cross multiply
76,940.99x = 115,426.44 × 29,552.60 - Step 4: Simplify right side
76,940.99x = 3,411,150,759.73 - Step 5: Solve for x
x = 3,411,150,759.73/76,940.99 - Step 6: Final answer
x = 44,334.64
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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.