Finding the Fourth Proportional to 76,903.33, 115,380.97 and 48,461.70
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Solution
The fourth proportional to 76,903.33, 115,380.97 and 48,461.70 is: 72,708.92
Step by Step Solution
- Step 1: Write the proportion equation
76,903.33 : 115,380.97 = 48,461.70 : x - Step 2: Convert to fraction form
76,903.33/115,380.97 = 48,461.70/x - Step 3: Cross multiply
76,903.33x = 115,380.97 × 48,461.70 - Step 4: Simplify right side
76,903.33x = 5,591,557,953.85 - Step 5: Solve for x
x = 5,591,557,953.85/76,903.33 - Step 6: Final answer
x = 72,708.92
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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.