Finding the Fourth Proportional to 79,902.77, 119,739.94 and 58,676.31
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Solution
The fourth proportional to 79,902.77, 119,739.94 and 58,676.31 is: 87,930.60
Step by Step Solution
- Step 1: Write the proportion equation
79,902.77 : 119,739.94 = 58,676.31 : x - Step 2: Convert to fraction form
79,902.77/119,739.94 = 58,676.31/x - Step 3: Cross multiply
79,902.77x = 119,739.94 × 58,676.31 - Step 4: Simplify right side
79,902.77x = 7,025,897,692.13 - Step 5: Solve for x
x = 7,025,897,692.13/79,902.77 - Step 6: Final answer
x = 87,930.60
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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.