Finding the Fourth Proportional to 74,884.28, 103,340.52 and 40,893.08
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Solution
The fourth proportional to 74,884.28, 103,340.52 and 40,893.08 is: 56,432.57
Step by Step Solution
- Step 1: Write the proportion equation
74,884.28 : 103,340.52 = 40,893.08 : x - Step 2: Convert to fraction form
74,884.28/103,340.52 = 40,893.08/x - Step 3: Cross multiply
74,884.28x = 103,340.52 × 40,893.08 - Step 4: Simplify right side
74,884.28x = 4,225,912,151.60 - Step 5: Solve for x
x = 4,225,912,151.60/74,884.28 - Step 6: Final answer
x = 56,432.57
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.