Finding the Fourth Proportional to 76,725.63, 115,163.17 and 47,201.13
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Solution
The fourth proportional to 76,725.63, 115,163.17 and 47,201.13 is: 70,847.66
Step by Step Solution
- Step 1: Write the proportion equation
76,725.63 : 115,163.17 = 47,201.13 : x - Step 2: Convert to fraction form
76,725.63/115,163.17 = 47,201.13/x - Step 3: Cross multiply
76,725.63x = 115,163.17 × 47,201.13 - Step 4: Simplify right side
76,725.63x = 5,435,831,640.38 - Step 5: Solve for x
x = 5,435,831,640.38/76,725.63 - Step 6: Final answer
x = 70,847.66
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1.5x scale
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.