Finding the Fourth Proportional to 83,432.79, 125,138.75 and 27,268.20
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Solution
The fourth proportional to 83,432.79, 125,138.75 and 27,268.20 is: 40,898.89
Step by Step Solution
- Step 1: Write the proportion equation
83,432.79 : 125,138.75 = 27,268.20 : x - Step 2: Convert to fraction form
83,432.79/125,138.75 = 27,268.20/x - Step 3: Cross multiply
83,432.79x = 125,138.75 × 27,268.20 - Step 4: Simplify right side
83,432.79x = 3,412,308,326.41 - Step 5: Solve for x
x = 3,412,308,326.41/83,432.79 - Step 6: Final answer
x = 40,898.89
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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.