Finding the Fourth Proportional to 79,351.21, 119,027.51 and 20,186.94
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Solution
The fourth proportional to 79,351.21, 119,027.51 and 20,186.94 is: 30,280.59
Step by Step Solution
- Step 1: Write the proportion equation
79,351.21 : 119,027.51 = 20,186.94 : x - Step 2: Convert to fraction form
79,351.21/119,027.51 = 20,186.94/x - Step 3: Cross multiply
79,351.21x = 119,027.51 × 20,186.94 - Step 4: Simplify right side
79,351.21x = 2,402,801,101.78 - Step 5: Solve for x
x = 2,402,801,101.78/79,351.21 - Step 6: Final answer
x = 30,280.59
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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.