Finding the Fourth Proportional to 83,786.40, 125,809.20 and 48,794.40
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Solution
The fourth proportional to 83,786.40, 125,809.20 and 48,794.40 is: 73,267.07
Step by Step Solution
- Step 1: Write the proportion equation
83,786.40 : 125,809.20 = 48,794.40 : x - Step 2: Convert to fraction form
83,786.40/125,809.20 = 48,794.40/x - Step 3: Cross multiply
83,786.40x = 125,809.20 × 48,794.40 - Step 4: Simplify right side
83,786.40x = 6,138,784,428.48 - Step 5: Solve for x
x = 6,138,784,428.48/83,786.40 - Step 6: Final answer
x = 73,267.07
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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.