Finding the Fourth Proportional to 86,383.68, 119,206.80 and 48,657.12
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Solution
The fourth proportional to 86,383.68, 119,206.80 and 48,657.12 is: 67,145.32
Step by Step Solution
- Step 1: Write the proportion equation
86,383.68 : 119,206.80 = 48,657.12 : x - Step 2: Convert to fraction form
86,383.68/119,206.80 = 48,657.12/x - Step 3: Cross multiply
86,383.68x = 119,206.80 × 48,657.12 - Step 4: Simplify right side
86,383.68x = 5,800,259,572.42 - Step 5: Solve for x
x = 5,800,259,572.42/86,383.68 - Step 6: Final answer
x = 67,145.32
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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.