Finding the Fourth Proportional to 87,859.75, 121,246.52 and 47,573.54
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Solution
The fourth proportional to 87,859.75, 121,246.52 and 47,573.54 is: 65,651.52
Step by Step Solution
- Step 1: Write the proportion equation
87,859.75 : 121,246.52 = 47,573.54 : x - Step 2: Convert to fraction form
87,859.75/121,246.52 = 47,573.54/x - Step 3: Cross multiply
87,859.75x = 121,246.52 × 47,573.54 - Step 4: Simplify right side
87,859.75x = 5,768,126,169.08 - Step 5: Solve for x
x = 5,768,126,169.08/87,859.75 - Step 6: Final answer
x = 65,651.52
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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.