Finding the Fourth Proportional to 75,427.14, 113,138.94 and 37,977.12
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Solution
The fourth proportional to 75,427.14, 113,138.94 and 37,977.12 is: 56,964.79
Step by Step Solution
- Step 1: Write the proportion equation
75,427.14 : 113,138.94 = 37,977.12 : x - Step 2: Convert to fraction form
75,427.14/113,138.94 = 37,977.12/x - Step 3: Cross multiply
75,427.14x = 113,138.94 × 37,977.12 - Step 4: Simplify right side
75,427.14x = 4,296,691,101.05 - Step 5: Solve for x
x = 4,296,691,101.05/75,427.14 - Step 6: Final answer
x = 56,964.79
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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.