Finding the Fourth Proportional to 71,856.76, 107,642.26 and 56,201.08
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Solution
The fourth proportional to 71,856.76, 107,642.26 and 56,201.08 is: 84,189.87
Step by Step Solution
- Step 1: Write the proportion equation
71,856.76 : 107,642.26 = 56,201.08 : x - Step 2: Convert to fraction form
71,856.76/107,642.26 = 56,201.08/x - Step 3: Cross multiply
71,856.76x = 107,642.26 × 56,201.08 - Step 4: Simplify right side
71,856.76x = 6,049,611,265.64 - Step 5: Solve for x
x = 6,049,611,265.64/71,856.76 - Step 6: Final answer
x = 84,189.87
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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.