Finding the Fourth Proportional to 82,903.93, 124,380.10 and 26,742.79
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Solution
The fourth proportional to 82,903.93, 124,380.10 and 26,742.79 is: 40,121.99
Step by Step Solution
- Step 1: Write the proportion equation
82,903.93 : 124,380.10 = 26,742.79 : x - Step 2: Convert to fraction form
82,903.93/124,380.10 = 26,742.79/x - Step 3: Cross multiply
82,903.93x = 124,380.10 × 26,742.79 - Step 4: Simplify right side
82,903.93x = 3,326,270,683.81 - Step 5: Solve for x
x = 3,326,270,683.81/82,903.93 - Step 6: Final answer
x = 40,121.99
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1.5x scale
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.