Finding the Fourth Proportional to 67,101.80, 100,652.94 and 20,355.08
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Solution
The fourth proportional to 67,101.80, 100,652.94 and 20,355.08 is: 30,532.69
Step by Step Solution
- Step 1: Write the proportion equation
67,101.80 : 100,652.94 = 20,355.08 : x - Step 2: Convert to fraction form
67,101.80/100,652.94 = 20,355.08/x - Step 3: Cross multiply
67,101.80x = 100,652.94 × 20,355.08 - Step 4: Simplify right side
67,101.80x = 2,048,798,645.94 - Step 5: Solve for x
x = 2,048,798,645.94/67,101.80 - Step 6: Final answer
x = 30,532.69
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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.