Finding the Fourth Proportional to 80,246.88, 120,317.76 and 40,749.12
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Solution
The fourth proportional to 80,246.88, 120,317.76 and 40,749.12 is: 61,096.99
Step by Step Solution
- Step 1: Write the proportion equation
80,246.88 : 120,317.76 = 40,749.12 : x - Step 2: Convert to fraction form
80,246.88/120,317.76 = 40,749.12/x - Step 3: Cross multiply
80,246.88x = 120,317.76 × 40,749.12 - Step 4: Simplify right side
80,246.88x = 4,902,842,840.37 - Step 5: Solve for x
x = 4,902,842,840.37/80,246.88 - Step 6: Final answer
x = 61,096.99
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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.