Finding the Fourth Proportional to 86,271.62, 129,420.50 and 27,101.73
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Solution
The fourth proportional to 86,271.62, 129,420.50 and 27,101.73 is: 40,656.70
Step by Step Solution
- Step 1: Write the proportion equation
86,271.62 : 129,420.50 = 27,101.73 : x - Step 2: Convert to fraction form
86,271.62/129,420.50 = 27,101.73/x - Step 3: Cross multiply
86,271.62x = 129,420.50 × 27,101.73 - Step 4: Simplify right side
86,271.62x = 3,507,519,311.96 - Step 5: Solve for x
x = 3,507,519,311.96/86,271.62 - Step 6: Final answer
x = 40,656.70
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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.