Finding the Fourth Proportional to 83,213.13, 124,819.70 and 27,809.13
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Solution
The fourth proportional to 83,213.13, 124,819.70 and 27,809.13 is: 41,713.70
Step by Step Solution
- Step 1: Write the proportion equation
83,213.13 : 124,819.70 = 27,809.13 : x - Step 2: Convert to fraction form
83,213.13/124,819.70 = 27,809.13/x - Step 3: Cross multiply
83,213.13x = 124,819.70 × 27,809.13 - Step 4: Simplify right side
83,213.13x = 3,471,127,263.86 - Step 5: Solve for x
x = 3,471,127,263.86/83,213.13 - Step 6: Final answer
x = 41,713.70
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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.