Finding the Fourth Proportional to 86,465.38, 119,324.05 and 48,739.62
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Solution
The fourth proportional to 86,465.38, 119,324.05 and 48,739.62 is: 67,261.70
Step by Step Solution
- Step 1: Write the proportion equation
86,465.38 : 119,324.05 = 48,739.62 : x - Step 2: Convert to fraction form
86,465.38/119,324.05 = 48,739.62/x - Step 3: Cross multiply
86,465.38x = 119,324.05 × 48,739.62 - Step 4: Simplify right side
86,465.38x = 5,815,808,853.86 - Step 5: Solve for x
x = 5,815,808,853.86/86,465.38 - Step 6: Final answer
x = 67,261.70
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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.