Finding the Fourth Proportional to 75,331.56, 112,911.42 and 35,308.68
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Solution
The fourth proportional to 75,331.56, 112,911.42 and 35,308.68 is: 52,922.75
Step by Step Solution
- Step 1: Write the proportion equation
75,331.56 : 112,911.42 = 35,308.68 : x - Step 2: Convert to fraction form
75,331.56/112,911.42 = 35,308.68/x - Step 3: Cross multiply
75,331.56x = 112,911.42 × 35,308.68 - Step 4: Simplify right side
75,331.56x = 3,986,753,197.13 - Step 5: Solve for x
x = 3,986,753,197.13/75,331.56 - Step 6: Final answer
x = 52,922.75
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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.