Finding the Fourth Proportional to 74,704.10, 111,926.55 and 48,395.30
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Solution
The fourth proportional to 74,704.10, 111,926.55 and 48,395.30 is: 72,508.99
Step by Step Solution
- Step 1: Write the proportion equation
74,704.10 : 111,926.55 = 48,395.30 : x - Step 2: Convert to fraction form
74,704.10/111,926.55 = 48,395.30/x - Step 3: Cross multiply
74,704.10x = 111,926.55 × 48,395.30 - Step 4: Simplify right side
74,704.10x = 5,416,718,965.22 - Step 5: Solve for x
x = 5,416,718,965.22/74,704.10 - Step 6: Final answer
x = 72,508.99
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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.