Finding the Fourth Proportional to 80,722.32, 121,116.84 and 35,720.08
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Solution
The fourth proportional to 80,722.32, 121,116.84 and 35,720.08 is: 53,594.88
Step by Step Solution
- Step 1: Write the proportion equation
80,722.32 : 121,116.84 = 35,720.08 : x - Step 2: Convert to fraction form
80,722.32/121,116.84 = 35,720.08/x - Step 3: Cross multiply
80,722.32x = 121,116.84 × 35,720.08 - Step 4: Simplify right side
80,722.32x = 4,326,303,214.15 - Step 5: Solve for x
x = 4,326,303,214.15/80,722.32 - Step 6: Final answer
x = 53,594.88
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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.