Finding the Fourth Proportional to 75,882.97, 113,836.80 and 28,501.75
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Solution
The fourth proportional to 75,882.97, 113,836.80 and 28,501.75 is: 42,757.26
Step by Step Solution
- Step 1: Write the proportion equation
75,882.97 : 113,836.80 = 28,501.75 : x - Step 2: Convert to fraction form
75,882.97/113,836.80 = 28,501.75/x - Step 3: Cross multiply
75,882.97x = 113,836.80 × 28,501.75 - Step 4: Simplify right side
75,882.97x = 3,244,548,014.40 - Step 5: Solve for x
x = 3,244,548,014.40/75,882.97 - Step 6: Final answer
x = 42,757.26
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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.