Finding the Fourth Proportional to 76,202.88, 105,793.44 and 73,921.92
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Solution
The fourth proportional to 76,202.88, 105,793.44 and 73,921.92 is: 102,626.75
Step by Step Solution
- Step 1: Write the proportion equation
76,202.88 : 105,793.44 = 73,921.92 : x - Step 2: Convert to fraction form
76,202.88/105,793.44 = 73,921.92/x - Step 3: Cross multiply
76,202.88x = 105,793.44 × 73,921.92 - Step 4: Simplify right side
76,202.88x = 7,820,454,208.20 - Step 5: Solve for x
x = 7,820,454,208.20/76,202.88 - Step 6: Final answer
x = 102,626.75
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.