Finding the Fourth Proportional to 73,676.53, 110,421.86 and 31,506.76
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Solution
The fourth proportional to 73,676.53, 110,421.86 and 31,506.76 is: 47,220.39
Step by Step Solution
- Step 1: Write the proportion equation
73,676.53 : 110,421.86 = 31,506.76 : x - Step 2: Convert to fraction form
73,676.53/110,421.86 = 31,506.76/x - Step 3: Cross multiply
73,676.53x = 110,421.86 × 31,506.76 - Step 4: Simplify right side
73,676.53x = 3,479,034,489.66 - Step 5: Solve for x
x = 3,479,034,489.66/73,676.53 - Step 6: Final answer
x = 47,220.39
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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.