Finding the Fourth Proportional to 84,789.05, 127,201.80 and 25,630.70
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Solution
The fourth proportional to 84,789.05, 127,201.80 and 25,630.70 is: 38,451.56
Step by Step Solution
- Step 1: Write the proportion equation
84,789.05 : 127,201.80 = 25,630.70 : x - Step 2: Convert to fraction form
84,789.05/127,201.80 = 25,630.70/x - Step 3: Cross multiply
84,789.05x = 127,201.80 × 25,630.70 - Step 4: Simplify right side
84,789.05x = 3,260,271,175.26 - Step 5: Solve for x
x = 3,260,271,175.26/84,789.05 - Step 6: Final answer
x = 38,451.56
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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.