Finding the Fourth Proportional to 81,187.53, 121,750.14 and 27,869.58
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Solution
The fourth proportional to 81,187.53, 121,750.14 and 27,869.58 is: 41,793.68
Step by Step Solution
- Step 1: Write the proportion equation
81,187.53 : 121,750.14 = 27,869.58 : x - Step 2: Convert to fraction form
81,187.53/121,750.14 = 27,869.58/x - Step 3: Cross multiply
81,187.53x = 121,750.14 × 27,869.58 - Step 4: Simplify right side
81,187.53x = 3,393,125,266.74 - Step 5: Solve for x
x = 3,393,125,266.74/81,187.53 - Step 6: Final answer
x = 41,793.68
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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.