Finding the Fourth Proportional to 84,743.40, 127,118.40 and 25,579.08
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Solution
The fourth proportional to 84,743.40, 127,118.40 and 25,579.08 is: 38,369.62
Step by Step Solution
- Step 1: Write the proportion equation
84,743.40 : 127,118.40 = 25,579.08 : x - Step 2: Convert to fraction form
84,743.40/127,118.40 = 25,579.08/x - Step 3: Cross multiply
84,743.40x = 127,118.40 × 25,579.08 - Step 4: Simplify right side
84,743.40x = 3,251,571,723.07 - Step 5: Solve for x
x = 3,251,571,723.07/84,743.40 - Step 6: Final answer
x = 38,369.62
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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.