Finding the Fourth Proportional to 83,468.28, 125,202.42 and 21,133.92
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Solution
The fourth proportional to 83,468.28, 125,202.42 and 21,133.92 is: 31,700.88
Step by Step Solution
- Step 1: Write the proportion equation
83,468.28 : 125,202.42 = 21,133.92 : x - Step 2: Convert to fraction form
83,468.28/125,202.42 = 21,133.92/x - Step 3: Cross multiply
83,468.28x = 125,202.42 × 21,133.92 - Step 4: Simplify right side
83,468.28x = 2,646,017,928.09 - Step 5: Solve for x
x = 2,646,017,928.09/83,468.28 - Step 6: Final answer
x = 31,700.88
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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.