Finding the Fourth Proportional to 80,751.87, 121,135.88 and 30,873.93
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Solution
The fourth proportional to 80,751.87, 121,135.88 and 30,873.93 is: 46,313.98
Step by Step Solution
- Step 1: Write the proportion equation
80,751.87 : 121,135.88 = 30,873.93 : x - Step 2: Convert to fraction form
80,751.87/121,135.88 = 30,873.93/x - Step 3: Cross multiply
80,751.87x = 121,135.88 × 30,873.93 - Step 4: Simplify right side
80,751.87x = 3,739,940,525.24 - Step 5: Solve for x
x = 3,739,940,525.24/80,751.87 - Step 6: Final answer
x = 46,313.98
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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.