Finding the Fourth Proportional to 80,939.32, 121,420.08 and 27,617.00
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Solution
The fourth proportional to 80,939.32, 121,420.08 and 27,617.00 is: 41,429.28
Step by Step Solution
- Step 1: Write the proportion equation
80,939.32 : 121,420.08 = 27,617.00 : x - Step 2: Convert to fraction form
80,939.32/121,420.08 = 27,617.00/x - Step 3: Cross multiply
80,939.32x = 121,420.08 × 27,617.00 - Step 4: Simplify right side
80,939.32x = 3,353,257,742.26 - Step 5: Solve for x
x = 3,353,257,742.26/80,939.32 - Step 6: Final answer
x = 41,429.28
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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.