Finding the Fourth Proportional to 72,299.54, 108,438.60 and 27,920.75
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Solution
The fourth proportional to 72,299.54, 108,438.60 and 27,920.75 is: 41,876.99
Step by Step Solution
- Step 1: Write the proportion equation
72,299.54 : 108,438.60 = 27,920.75 : x - Step 2: Convert to fraction form
72,299.54/108,438.60 = 27,920.75/x - Step 3: Cross multiply
72,299.54x = 108,438.60 × 27,920.75 - Step 4: Simplify right side
72,299.54x = 3,027,687,056.37 - Step 5: Solve for x
x = 3,027,687,056.37/72,299.54 - Step 6: Final answer
x = 41,876.99
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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.