Finding the Fourth Proportional to 83,423.45, 125,134.12 and 20,244.09
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Solution
The fourth proportional to 83,423.45, 125,134.12 and 20,244.09 is: 30,365.88
Step by Step Solution
- Step 1: Write the proportion equation
83,423.45 : 125,134.12 = 20,244.09 : x - Step 2: Convert to fraction form
83,423.45/125,134.12 = 20,244.09/x - Step 3: Cross multiply
83,423.45x = 125,134.12 × 20,244.09 - Step 4: Simplify right side
83,423.45x = 2,533,226,938.85 - Step 5: Solve for x
x = 2,533,226,938.85/83,423.45 - Step 6: Final answer
x = 30,365.88
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1.5x scale
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.