Finding the Fourth Proportional to 87,947.75, 121,372.22 and 48,203.75
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Solution
The fourth proportional to 87,947.75, 121,372.22 and 48,203.75 is: 66,523.55
Step by Step Solution
- Step 1: Write the proportion equation
87,947.75 : 121,372.22 = 48,203.75 : x - Step 2: Convert to fraction form
87,947.75/121,372.22 = 48,203.75/x - Step 3: Cross multiply
87,947.75x = 121,372.22 × 48,203.75 - Step 4: Simplify right side
87,947.75x = 5,850,596,149.83 - Step 5: Solve for x
x = 5,850,596,149.83/87,947.75 - Step 6: Final answer
x = 66,523.55
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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.