Finding the Fourth Proportional to 73,452.80, 110,102.40 and 40,121.60
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Solution
The fourth proportional to 73,452.80, 110,102.40 and 40,121.60 is: 60,140.45
Step by Step Solution
- Step 1: Write the proportion equation
73,452.80 : 110,102.40 = 40,121.60 : x - Step 2: Convert to fraction form
73,452.80/110,102.40 = 40,121.60/x - Step 3: Cross multiply
73,452.80x = 110,102.40 × 40,121.60 - Step 4: Simplify right side
73,452.80x = 4,417,484,451.84 - Step 5: Solve for x
x = 4,417,484,451.84/73,452.80 - Step 6: Final answer
x = 60,140.45
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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.