Finding the Fourth Proportional to 74,433.20, 111,664.20 and 32,880.08
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Solution
The fourth proportional to 74,433.20, 111,664.20 and 32,880.08 is: 49,326.48
Step by Step Solution
- Step 1: Write the proportion equation
74,433.20 : 111,664.20 = 32,880.08 : x - Step 2: Convert to fraction form
74,433.20/111,664.20 = 32,880.08/x - Step 3: Cross multiply
74,433.20x = 111,664.20 × 32,880.08 - Step 4: Simplify right side
74,433.20x = 3,671,527,829.14 - Step 5: Solve for x
x = 3,671,527,829.14/74,433.20 - Step 6: Final answer
x = 49,326.48
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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.