Finding the Fourth Proportional to 75,972.36, 113,958.63 and 19,812.42
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Solution
The fourth proportional to 75,972.36, 113,958.63 and 19,812.42 is: 29,718.65
Step by Step Solution
- Step 1: Write the proportion equation
75,972.36 : 113,958.63 = 19,812.42 : x - Step 2: Convert to fraction form
75,972.36/113,958.63 = 19,812.42/x - Step 3: Cross multiply
75,972.36x = 113,958.63 × 19,812.42 - Step 4: Simplify right side
75,972.36x = 2,257,796,240.18 - Step 5: Solve for x
x = 2,257,796,240.18/75,972.36 - Step 6: Final answer
x = 29,718.65
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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.