Finding the Fourth Proportional to 74,052.80, 110,992.80 and 29,657.60
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Solution
The fourth proportional to 74,052.80, 110,992.80 and 29,657.60 is: 44,451.80
Step by Step Solution
- Step 1: Write the proportion equation
74,052.80 : 110,992.80 = 29,657.60 : x - Step 2: Convert to fraction form
74,052.80/110,992.80 = 29,657.60/x - Step 3: Cross multiply
74,052.80x = 110,992.80 × 29,657.60 - Step 4: Simplify right side
74,052.80x = 3,291,780,065.28 - Step 5: Solve for x
x = 3,291,780,065.28/74,052.80 - Step 6: Final answer
x = 44,451.80
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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.