Finding the Fourth Proportional to 80,765.48, 121,022.26 and 51,120.70
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Solution
The fourth proportional to 80,765.48, 121,022.26 and 51,120.70 is: 76,601.32
Step by Step Solution
- Step 1: Write the proportion equation
80,765.48 : 121,022.26 = 51,120.70 : x - Step 2: Convert to fraction form
80,765.48/121,022.26 = 51,120.70/x - Step 3: Cross multiply
80,765.48x = 121,022.26 × 51,120.70 - Step 4: Simplify right side
80,765.48x = 6,186,742,646.78 - Step 5: Solve for x
x = 6,186,742,646.78/80,765.48 - Step 6: Final answer
x = 76,601.32
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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.