Finding the Fourth Proportional to 86,447.55, 129,619.49 and 33,794.31
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Solution
The fourth proportional to 86,447.55, 129,619.49 and 33,794.31 is: 50,671.20
Step by Step Solution
- Step 1: Write the proportion equation
86,447.55 : 129,619.49 = 33,794.31 : x - Step 2: Convert to fraction form
86,447.55/129,619.49 = 33,794.31/x - Step 3: Cross multiply
86,447.55x = 129,619.49 × 33,794.31 - Step 4: Simplify right side
86,447.55x = 4,380,401,058.13 - Step 5: Solve for x
x = 4,380,401,058.13/86,447.55 - Step 6: Final answer
x = 50,671.20
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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.