Finding the Fourth Proportional to 83,425.12, 115,098.50 and 47,589.90
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Solution
The fourth proportional to 83,425.12, 115,098.50 and 47,589.90 is: 65,657.99
Step by Step Solution
- Step 1: Write the proportion equation
83,425.12 : 115,098.50 = 47,589.90 : x - Step 2: Convert to fraction form
83,425.12/115,098.50 = 47,589.90/x - Step 3: Cross multiply
83,425.12x = 115,098.50 × 47,589.90 - Step 4: Simplify right side
83,425.12x = 5,477,526,105.15 - Step 5: Solve for x
x = 5,477,526,105.15/83,425.12 - Step 6: Final answer
x = 65,657.99
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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.