Finding the Fourth Proportional to 73,163.10, 100,959.84 and 42,949.65
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Solution
The fourth proportional to 73,163.10, 100,959.84 and 42,949.65 is: 59,267.44
Step by Step Solution
- Step 1: Write the proportion equation
73,163.10 : 100,959.84 = 42,949.65 : x - Step 2: Convert to fraction form
73,163.10/100,959.84 = 42,949.65/x - Step 3: Cross multiply
73,163.10x = 100,959.84 × 42,949.65 - Step 4: Simplify right side
73,163.10x = 4,336,189,792.06 - Step 5: Solve for x
x = 4,336,189,792.06/73,163.10 - Step 6: Final answer
x = 59,267.44
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.