Finding the Fourth Proportional to 80,271.05, 110,756.99 and 48,439.40
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Solution
The fourth proportional to 80,271.05, 110,756.99 and 48,439.40 is: 66,836.07
Step by Step Solution
- Step 1: Write the proportion equation
80,271.05 : 110,756.99 = 48,439.40 : x - Step 2: Convert to fraction form
80,271.05/110,756.99 = 48,439.40/x - Step 3: Cross multiply
80,271.05x = 110,756.99 × 48,439.40 - Step 4: Simplify right side
80,271.05x = 5,365,001,899.21 - Step 5: Solve for x
x = 5,365,001,899.21/80,271.05 - Step 6: Final answer
x = 66,836.07
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.