Finding the Fourth Proportional to 86,043.23, 129,064.84 and 26,878.96
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Solution
The fourth proportional to 86,043.23, 129,064.84 and 26,878.96 is: 40,318.44
Step by Step Solution
- Step 1: Write the proportion equation
86,043.23 : 129,064.84 = 26,878.96 : x - Step 2: Convert to fraction form
86,043.23/129,064.84 = 26,878.96/x - Step 3: Cross multiply
86,043.23x = 129,064.84 × 26,878.96 - Step 4: Simplify right side
86,043.23x = 3,469,128,281.91 - Step 5: Solve for x
x = 3,469,128,281.91/86,043.23 - Step 6: Final answer
x = 40,318.44
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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.