Finding the Fourth Proportional to 86,462.20, 129,682.36 and 27,303.85
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Solution
The fourth proportional to 86,462.20, 129,682.36 and 27,303.85 is: 40,952.32
Step by Step Solution
- Step 1: Write the proportion equation
86,462.20 : 129,682.36 = 27,303.85 : x - Step 2: Convert to fraction form
86,462.20/129,682.36 = 27,303.85/x - Step 3: Cross multiply
86,462.20x = 129,682.36 × 27,303.85 - Step 4: Simplify right side
86,462.20x = 3,540,827,705.09 - Step 5: Solve for x
x = 3,540,827,705.09/86,462.20 - Step 6: Final answer
x = 40,952.32
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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.