Finding the Fourth Proportional to 86,385.70, 119,210.07 and 48,145.42
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Solution
The fourth proportional to 86,385.70, 119,210.07 and 48,145.42 is: 66,439.46
Step by Step Solution
- Step 1: Write the proportion equation
86,385.70 : 119,210.07 = 48,145.42 : x - Step 2: Convert to fraction form
86,385.70/119,210.07 = 48,145.42/x - Step 3: Cross multiply
86,385.70x = 119,210.07 × 48,145.42 - Step 4: Simplify right side
86,385.70x = 5,739,418,888.38 - Step 5: Solve for x
x = 5,739,418,888.38/86,385.70 - Step 6: Final answer
x = 66,439.46
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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.