Finding the Fourth Proportional to 76,777.82, 115,112.18 and 29,352.96
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Solution
The fourth proportional to 76,777.82, 115,112.18 and 29,352.96 is: 44,008.58
Step by Step Solution
- Step 1: Write the proportion equation
76,777.82 : 115,112.18 = 29,352.96 : x - Step 2: Convert to fraction form
76,777.82/115,112.18 = 29,352.96/x - Step 3: Cross multiply
76,777.82x = 115,112.18 × 29,352.96 - Step 4: Simplify right side
76,777.82x = 3,378,883,215.05 - Step 5: Solve for x
x = 3,378,883,215.05/76,777.82 - Step 6: Final answer
x = 44,008.58
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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.