Finding the Fourth Proportional to 67,890.76, 101,811.84 and 23,505.60
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Solution
The fourth proportional to 67,890.76, 101,811.84 and 23,505.60 is: 35,249.99
Step by Step Solution
- Step 1: Write the proportion equation
67,890.76 : 101,811.84 = 23,505.60 : x - Step 2: Convert to fraction form
67,890.76/101,811.84 = 23,505.60/x - Step 3: Cross multiply
67,890.76x = 101,811.84 × 23,505.60 - Step 4: Simplify right side
67,890.76x = 2,393,148,386.30 - Step 5: Solve for x
x = 2,393,148,386.30/67,890.76 - Step 6: Final answer
x = 35,249.99
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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.