Finding the Fourth Proportional to 76,045.68, 104,946.98 and 43,785.09
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Solution
The fourth proportional to 76,045.68, 104,946.98 and 43,785.09 is: 60,425.69
Step by Step Solution
- Step 1: Write the proportion equation
76,045.68 : 104,946.98 = 43,785.09 : x - Step 2: Convert to fraction form
76,045.68/104,946.98 = 43,785.09/x - Step 3: Cross multiply
76,045.68x = 104,946.98 × 43,785.09 - Step 4: Simplify right side
76,045.68x = 4,595,112,745.60 - Step 5: Solve for x
x = 4,595,112,745.60/76,045.68 - Step 6: Final answer
x = 60,425.69
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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.