Finding the Fourth Proportional to 82,775.91, 124,237.69 and 38,427.65
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Solution
The fourth proportional to 82,775.91, 124,237.69 and 38,427.65 is: 57,675.75
Step by Step Solution
- Step 1: Write the proportion equation
82,775.91 : 124,237.69 = 38,427.65 : x - Step 2: Convert to fraction form
82,775.91/124,237.69 = 38,427.65/x - Step 3: Cross multiply
82,775.91x = 124,237.69 × 38,427.65 - Step 4: Simplify right side
82,775.91x = 4,774,162,686.85 - Step 5: Solve for x
x = 4,774,162,686.85/82,775.91 - Step 6: Final answer
x = 57,675.75
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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.