Finding the Fourth Proportional to 87,630.98, 120,930.58 and 47,344.62
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Solution
The fourth proportional to 87,630.98, 120,930.58 and 47,344.62 is: 65,335.48
Step by Step Solution
- Step 1: Write the proportion equation
87,630.98 : 120,930.58 = 47,344.62 : x - Step 2: Convert to fraction form
87,630.98/120,930.58 = 47,344.62/x - Step 3: Cross multiply
87,630.98x = 120,930.58 × 47,344.62 - Step 4: Simplify right side
87,630.98x = 5,725,412,356.48 - Step 5: Solve for x
x = 5,725,412,356.48/87,630.98 - Step 6: Final answer
x = 65,335.48
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1.5x scale
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.