Finding the Fourth Proportional to 86,393.97, 119,263.68 and 60,921.09
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Solution
The fourth proportional to 86,393.97, 119,263.68 and 60,921.09 is: 84,099.31
Step by Step Solution
- Step 1: Write the proportion equation
86,393.97 : 119,263.68 = 60,921.09 : x - Step 2: Convert to fraction form
86,393.97/119,263.68 = 60,921.09/x - Step 3: Cross multiply
86,393.97x = 119,263.68 × 60,921.09 - Step 4: Simplify right side
86,393.97x = 7,265,673,383.01 - Step 5: Solve for x
x = 7,265,673,383.01/86,393.97 - Step 6: Final answer
x = 84,099.31
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1.5x scale
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.