Finding the Fourth Proportional to 127,765.68, 191,677.68 and 39,031.80
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Solution
The fourth proportional to 127,765.68, 191,677.68 and 39,031.80 is: 58,556.61
Step by Step Solution
- Step 1: Write the proportion equation
127,765.68 : 191,677.68 = 39,031.80 : x - Step 2: Convert to fraction form
127,765.68/191,677.68 = 39,031.80/x - Step 3: Cross multiply
127,765.68x = 191,677.68 × 39,031.80 - Step 4: Simplify right side
127,765.68x = 7,481,524,870.22 - Step 5: Solve for x
x = 7,481,524,870.22/127,765.68 - Step 6: Final answer
x = 58,556.61
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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.