Finding the Fourth Proportional to 76,799.97, 115,120.86 and 29,403.90
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Solution
The fourth proportional to 76,799.97, 115,120.86 and 29,403.90 is: 44,075.57
Step by Step Solution
- Step 1: Write the proportion equation
76,799.97 : 115,120.86 = 29,403.90 : x - Step 2: Convert to fraction form
76,799.97/115,120.86 = 29,403.90/x - Step 3: Cross multiply
76,799.97x = 115,120.86 × 29,403.90 - Step 4: Simplify right side
76,799.97x = 3,385,002,255.35 - Step 5: Solve for x
x = 3,385,002,255.35/76,799.97 - Step 6: Final answer
x = 44,075.57
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1.5x scale
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.