Finding the Fourth Proportional to 82,239.28, 113,484.68 and 46,430.80
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Solution
The fourth proportional to 82,239.28, 113,484.68 and 46,430.80 is: 64,071.38
Step by Step Solution
- Step 1: Write the proportion equation
82,239.28 : 113,484.68 = 46,430.80 : x - Step 2: Convert to fraction form
82,239.28/113,484.68 = 46,430.80/x - Step 3: Cross multiply
82,239.28x = 113,484.68 × 46,430.80 - Step 4: Simplify right side
82,239.28x = 5,269,184,480.14 - Step 5: Solve for x
x = 5,269,184,480.14/82,239.28 - Step 6: Final answer
x = 64,071.38
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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.