Finding the Fourth Proportional to 73,102.80, 100,881.60 and 39,568.80
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Solution
The fourth proportional to 73,102.80, 100,881.60 and 39,568.80 is: 54,604.80
Step by Step Solution
- Step 1: Write the proportion equation
73,102.80 : 100,881.60 = 39,568.80 : x - Step 2: Convert to fraction form
73,102.80/100,881.60 = 39,568.80/x - Step 3: Cross multiply
73,102.80x = 100,881.60 × 39,568.80 - Step 4: Simplify right side
73,102.80x = 3,991,763,854.08 - Step 5: Solve for x
x = 3,991,763,854.08/73,102.80 - Step 6: Final answer
x = 54,604.80
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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.