Finding the Fourth Proportional to 76,768.22, 105,940.35 and 44,509.09
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Solution
The fourth proportional to 76,768.22, 105,940.35 and 44,509.09 is: 61,422.66
Step by Step Solution
- Step 1: Write the proportion equation
76,768.22 : 105,940.35 = 44,509.09 : x - Step 2: Convert to fraction form
76,768.22/105,940.35 = 44,509.09/x - Step 3: Cross multiply
76,768.22x = 105,940.35 × 44,509.09 - Step 4: Simplify right side
76,768.22x = 4,715,308,572.78 - Step 5: Solve for x
x = 4,715,308,572.78/76,768.22 - Step 6: Final answer
x = 61,422.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.