Finding the Fourth Proportional to 99,726.40, 149,596.80 and 33,212.80
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Solution
The fourth proportional to 99,726.40, 149,596.80 and 33,212.80 is: 49,821.60
Step by Step Solution
- Step 1: Write the proportion equation
99,726.40 : 149,596.80 = 33,212.80 : x - Step 2: Convert to fraction form
99,726.40/149,596.80 = 33,212.80/x - Step 3: Cross multiply
99,726.40x = 149,596.80 × 33,212.80 - Step 4: Simplify right side
99,726.40x = 4,968,528,599.04 - Step 5: Solve for x
x = 4,968,528,599.04/99,726.40 - Step 6: Final answer
x = 49,821.60
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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.