Finding the Fourth Proportional to 71,331.10, 106,881.45 and 44,988.70
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Solution
The fourth proportional to 71,331.10, 106,881.45 and 44,988.70 is: 67,410.39
Step by Step Solution
- Step 1: Write the proportion equation
71,331.10 : 106,881.45 = 44,988.70 : x - Step 2: Convert to fraction form
71,331.10/106,881.45 = 44,988.70/x - Step 3: Cross multiply
71,331.10x = 106,881.45 × 44,988.70 - Step 4: Simplify right side
71,331.10x = 4,808,457,489.62 - Step 5: Solve for x
x = 4,808,457,489.62/71,331.10 - Step 6: Final answer
x = 67,410.39
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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.