Finding the Fourth Proportional to 81,402.12, 122,004.75 and 41,937.70
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Solution
The fourth proportional to 81,402.12, 122,004.75 and 41,937.70 is: 62,855.84
Step by Step Solution
- Step 1: Write the proportion equation
81,402.12 : 122,004.75 = 41,937.70 : x - Step 2: Convert to fraction form
81,402.12/122,004.75 = 41,937.70/x - Step 3: Cross multiply
81,402.12x = 122,004.75 × 41,937.70 - Step 4: Simplify right side
81,402.12x = 5,116,598,604.08 - Step 5: Solve for x
x = 5,116,598,604.08/81,402.12 - Step 6: Final answer
x = 62,855.84
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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.