Finding the Fourth Proportional to 67,875.63, 101,828.06 and 20,486.75
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Solution
The fourth proportional to 67,875.63, 101,828.06 and 20,486.75 is: 30,734.54
Step by Step Solution
- Step 1: Write the proportion equation
67,875.63 : 101,828.06 = 20,486.75 : x - Step 2: Convert to fraction form
67,875.63/101,828.06 = 20,486.75/x - Step 3: Cross multiply
67,875.63x = 101,828.06 × 20,486.75 - Step 4: Simplify right side
67,875.63x = 2,086,126,008.21 - Step 5: Solve for x
x = 2,086,126,008.21/67,875.63 - Step 6: Final answer
x = 30,734.54
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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.