Finding the Fourth Proportional to 80,803.80, 121,205.70 and 24,643.80
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Solution
The fourth proportional to 80,803.80, 121,205.70 and 24,643.80 is: 36,965.70
Step by Step Solution
- Step 1: Write the proportion equation
80,803.80 : 121,205.70 = 24,643.80 : x - Step 2: Convert to fraction form
80,803.80/121,205.70 = 24,643.80/x - Step 3: Cross multiply
80,803.80x = 121,205.70 × 24,643.80 - Step 4: Simplify right side
80,803.80x = 2,986,969,029.66 - Step 5: Solve for x
x = 2,986,969,029.66/80,803.80 - Step 6: Final answer
x = 36,965.70
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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.