Finding the Fourth Proportional to 67,639.68, 101,393.60 and 28,208.08
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Solution
The fourth proportional to 67,639.68, 101,393.60 and 28,208.08 is: 42,284.63
Step by Step Solution
- Step 1: Write the proportion equation
67,639.68 : 101,393.60 = 28,208.08 : x - Step 2: Convert to fraction form
67,639.68/101,393.60 = 28,208.08/x - Step 3: Cross multiply
67,639.68x = 101,393.60 × 28,208.08 - Step 4: Simplify right side
67,639.68x = 2,860,118,780.29 - Step 5: Solve for x
x = 2,860,118,780.29/67,639.68 - Step 6: Final answer
x = 42,284.63
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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.