Finding the Fourth Proportional to 80,962.14, 121,478.34 and 43,478.52
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Solution
The fourth proportional to 80,962.14, 121,478.34 and 43,478.52 is: 65,236.65
Step by Step Solution
- Step 1: Write the proportion equation
80,962.14 : 121,478.34 = 43,478.52 : x - Step 2: Convert to fraction form
80,962.14/121,478.34 = 43,478.52/x - Step 3: Cross multiply
80,962.14x = 121,478.34 × 43,478.52 - Step 4: Simplify right side
80,962.14x = 5,281,698,435.26 - Step 5: Solve for x
x = 5,281,698,435.26/80,962.14 - Step 6: Final answer
x = 65,236.65
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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.