Finding the Fourth Proportional to 75,473.12, 113,213.57 and 19,313.73
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Solution
The fourth proportional to 75,473.12, 113,213.57 and 19,313.73 is: 28,971.59
Step by Step Solution
- Step 1: Write the proportion equation
75,473.12 : 113,213.57 = 19,313.73 : x - Step 2: Convert to fraction form
75,473.12/113,213.57 = 19,313.73/x - Step 3: Cross multiply
75,473.12x = 113,213.57 × 19,313.73 - Step 4: Simplify right side
75,473.12x = 2,186,576,226.75 - Step 5: Solve for x
x = 2,186,576,226.75/75,473.12 - Step 6: Final answer
x = 28,971.59
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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.