Finding the Fourth Proportional to 76,829.76, 115,260.30 and 43,564.68
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Solution
The fourth proportional to 76,829.76, 115,260.30 and 43,564.68 is: 65,355.90
Step by Step Solution
- Step 1: Write the proportion equation
76,829.76 : 115,260.30 = 43,564.68 : x - Step 2: Convert to fraction form
76,829.76/115,260.30 = 43,564.68/x - Step 3: Cross multiply
76,829.76x = 115,260.30 × 43,564.68 - Step 4: Simplify right side
76,829.76x = 5,021,278,086.20 - Step 5: Solve for x
x = 5,021,278,086.20/76,829.76 - Step 6: Final answer
x = 65,355.90
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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.