Finding the Fourth Proportional to 86,369.70, 129,567.51 and 27,199.20
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Solution
The fourth proportional to 86,369.70, 129,567.51 and 27,199.20 is: 40,802.88
Step by Step Solution
- Step 1: Write the proportion equation
86,369.70 : 129,567.51 = 27,199.20 : x - Step 2: Convert to fraction form
86,369.70/129,567.51 = 27,199.20/x - Step 3: Cross multiply
86,369.70x = 129,567.51 × 27,199.20 - Step 4: Simplify right side
86,369.70x = 3,524,132,617.99 - Step 5: Solve for x
x = 3,524,132,617.99/86,369.70 - Step 6: Final answer
x = 40,802.88
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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.