Finding the Fourth Proportional to 87,141.29, 130,728.94 and 27,972.41
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Solution
The fourth proportional to 87,141.29, 130,728.94 and 27,972.41 is: 41,964.07
Step by Step Solution
- Step 1: Write the proportion equation
87,141.29 : 130,728.94 = 27,972.41 : x - Step 2: Convert to fraction form
87,141.29/130,728.94 = 27,972.41/x - Step 3: Cross multiply
87,141.29x = 130,728.94 × 27,972.41 - Step 4: Simplify right side
87,141.29x = 3,656,802,784.97 - Step 5: Solve for x
x = 3,656,802,784.97/87,141.29 - Step 6: Final answer
x = 41,964.07
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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.