Finding the Fourth Proportional to 83,540.71, 115,260.99 and 51,242.14
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Solution
The fourth proportional to 83,540.71, 115,260.99 and 51,242.14 is: 70,698.70
Step by Step Solution
- Step 1: Write the proportion equation
83,540.71 : 115,260.99 = 51,242.14 : x - Step 2: Convert to fraction form
83,540.71/115,260.99 = 51,242.14/x - Step 3: Cross multiply
83,540.71x = 115,260.99 × 51,242.14 - Step 4: Simplify right side
83,540.71x = 5,906,219,786.12 - Step 5: Solve for x
x = 5,906,219,786.12/83,540.71 - Step 6: Final answer
x = 70,698.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.