Finding the Fourth Proportional to 76,013.73, 104,898.23 and 42,023.09
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Solution
The fourth proportional to 76,013.73, 104,898.23 and 42,023.09 is: 57,991.47
Step by Step Solution
- Step 1: Write the proportion equation
76,013.73 : 104,898.23 = 42,023.09 : x - Step 2: Convert to fraction form
76,013.73/104,898.23 = 42,023.09/x - Step 3: Cross multiply
76,013.73x = 104,898.23 × 42,023.09 - Step 4: Simplify right side
76,013.73x = 4,408,147,760.13 - Step 5: Solve for x
x = 4,408,147,760.13/76,013.73 - Step 6: Final answer
x = 57,991.47
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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.