Finding the Fourth Proportional to 74,048.40, 110,926.80 and 44,378.10
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Solution
The fourth proportional to 74,048.40, 110,926.80 and 44,378.10 is: 66,479.77
Step by Step Solution
- Step 1: Write the proportion equation
74,048.40 : 110,926.80 = 44,378.10 : x - Step 2: Convert to fraction form
74,048.40/110,926.80 = 44,378.10/x - Step 3: Cross multiply
74,048.40x = 110,926.80 × 44,378.10 - Step 4: Simplify right side
74,048.40x = 4,922,720,623.08 - Step 5: Solve for x
x = 4,922,720,623.08/74,048.40 - Step 6: Final answer
x = 66,479.77
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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.