Finding the Fourth Proportional to 83,449.28, 115,170.72 and 47,631.08
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Solution
The fourth proportional to 83,449.28, 115,170.72 and 47,631.08 is: 65,737.01
Step by Step Solution
- Step 1: Write the proportion equation
83,449.28 : 115,170.72 = 47,631.08 : x - Step 2: Convert to fraction form
83,449.28/115,170.72 = 47,631.08/x - Step 3: Cross multiply
83,449.28x = 115,170.72 × 47,631.08 - Step 4: Simplify right side
83,449.28x = 5,485,705,777.98 - Step 5: Solve for x
x = 5,485,705,777.98/83,449.28 - Step 6: Final answer
x = 65,737.01
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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.