Finding the Fourth Proportional to 81,187.35, 121,766.67 and 22,027.63
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Solution
The fourth proportional to 81,187.35, 121,766.67 and 22,027.63 is: 33,037.55
Step by Step Solution
- Step 1: Write the proportion equation
81,187.35 : 121,766.67 = 22,027.63 : x - Step 2: Convert to fraction form
81,187.35/121,766.67 = 22,027.63/x - Step 3: Cross multiply
81,187.35x = 121,766.67 × 22,027.63 - Step 4: Simplify right side
81,187.35x = 2,682,231,305.30 - Step 5: Solve for x
x = 2,682,231,305.30/81,187.35 - Step 6: Final answer
x = 33,037.55
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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.