Finding the Fourth Proportional to 80,701.44, 120,984.12 and 38,557.68
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Solution
The fourth proportional to 80,701.44, 120,984.12 and 38,557.68 is: 57,804.01
Step by Step Solution
- Step 1: Write the proportion equation
80,701.44 : 120,984.12 = 38,557.68 : x - Step 2: Convert to fraction form
80,701.44/120,984.12 = 38,557.68/x - Step 3: Cross multiply
80,701.44x = 120,984.12 × 38,557.68 - Step 4: Simplify right side
80,701.44x = 4,664,866,984.04 - Step 5: Solve for x
x = 4,664,866,984.04/80,701.44 - Step 6: Final answer
x = 57,804.01
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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.