Finding the Fourth Proportional to 103,628.10, 155,524.17 and 40,478.48
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Solution
The fourth proportional to 103,628.10, 155,524.17 and 40,478.48 is: 60,749.75
Step by Step Solution
- Step 1: Write the proportion equation
103,628.10 : 155,524.17 = 40,478.48 : x - Step 2: Convert to fraction form
103,628.10/155,524.17 = 40,478.48/x - Step 3: Cross multiply
103,628.10x = 155,524.17 × 40,478.48 - Step 4: Simplify right side
103,628.10x = 6,295,381,227.24 - Step 5: Solve for x
x = 6,295,381,227.24/103,628.10 - Step 6: Final answer
x = 60,749.75
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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.