Finding the Fourth Proportional to 71,189.16, 106,977.74 and 37,932.99
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Solution
The fourth proportional to 71,189.16, 106,977.74 and 37,932.99 is: 57,002.85
Step by Step Solution
- Step 1: Write the proportion equation
71,189.16 : 106,977.74 = 37,932.99 : x - Step 2: Convert to fraction form
71,189.16/106,977.74 = 37,932.99/x - Step 3: Cross multiply
71,189.16x = 106,977.74 × 37,932.99 - Step 4: Simplify right side
71,189.16x = 4,057,985,351.98 - Step 5: Solve for x
x = 4,057,985,351.98/71,189.16 - Step 6: Final answer
x = 57,002.85
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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.