Finding the Fourth Proportional to 80,212.91, 120,437.65 and 44,743.53
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Solution
The fourth proportional to 80,212.91, 120,437.65 and 44,743.53 is: 67,181.28
Step by Step Solution
- Step 1: Write the proportion equation
80,212.91 : 120,437.65 = 44,743.53 : x - Step 2: Convert to fraction form
80,212.91/120,437.65 = 44,743.53/x - Step 3: Cross multiply
80,212.91x = 120,437.65 × 44,743.53 - Step 4: Simplify right side
80,212.91x = 5,388,805,605.90 - Step 5: Solve for x
x = 5,388,805,605.90/80,212.91 - Step 6: Final answer
x = 67,181.28
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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.