Finding the Fourth Proportional to 86,739.70, 119,700.98 and 48,500.63
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Solution
The fourth proportional to 86,739.70, 119,700.98 and 48,500.63 is: 66,930.98
Step by Step Solution
- Step 1: Write the proportion equation
86,739.70 : 119,700.98 = 48,500.63 : x - Step 2: Convert to fraction form
86,739.70/119,700.98 = 48,500.63/x - Step 3: Cross multiply
86,739.70x = 119,700.98 × 48,500.63 - Step 4: Simplify right side
86,739.70x = 5,805,573,180.24 - Step 5: Solve for x
x = 5,805,573,180.24/86,739.70 - Step 6: Final answer
x = 66,930.98
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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.