Finding the Fourth Proportional to 87,763.97, 121,113.92 and 47,477.64
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Solution
The fourth proportional to 87,763.97, 121,113.92 and 47,477.64 is: 65,518.95
Step by Step Solution
- Step 1: Write the proportion equation
87,763.97 : 121,113.92 = 47,477.64 : x - Step 2: Convert to fraction form
87,763.97/121,113.92 = 47,477.64/x - Step 3: Cross multiply
87,763.97x = 121,113.92 × 47,477.64 - Step 4: Simplify right side
87,763.97x = 5,750,203,092.75 - Step 5: Solve for x
x = 5,750,203,092.75/87,763.97 - Step 6: Final answer
x = 65,518.95
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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.