Finding the Fourth Proportional to 71,334.40, 106,972.80 and 24,563.20
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Solution
The fourth proportional to 71,334.40, 106,972.80 and 24,563.20 is: 36,834.88
Step by Step Solution
- Step 1: Write the proportion equation
71,334.40 : 106,972.80 = 24,563.20 : x - Step 2: Convert to fraction form
71,334.40/106,972.80 = 24,563.20/x - Step 3: Cross multiply
71,334.40x = 106,972.80 × 24,563.20 - Step 4: Simplify right side
71,334.40x = 2,627,594,280.96 - Step 5: Solve for x
x = 2,627,594,280.96/71,334.40 - Step 6: Final answer
x = 36,834.88
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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.