Finding the Fourth Proportional to 82,863.36, 124,919.68 and 77,518.08
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Solution
The fourth proportional to 82,863.36, 124,919.68 and 77,518.08 is: 116,861.47
Step by Step Solution
- Step 1: Write the proportion equation
82,863.36 : 124,919.68 = 77,518.08 : x - Step 2: Convert to fraction form
82,863.36/124,919.68 = 77,518.08/x - Step 3: Cross multiply
82,863.36x = 124,919.68 × 77,518.08 - Step 4: Simplify right side
82,863.36x = 9,683,533,747.81 - Step 5: Solve for x
x = 9,683,533,747.81/82,863.36 - Step 6: Final answer
x = 116,861.47
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.