Finding the Fourth Proportional to 86,393.79, 119,209.73 and 48,660.75
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Solution
The fourth proportional to 86,393.79, 119,209.73 and 48,660.75 is: 67,144.12
Step by Step Solution
- Step 1: Write the proportion equation
86,393.79 : 119,209.73 = 48,660.75 : x - Step 2: Convert to fraction form
86,393.79/119,209.73 = 48,660.75/x - Step 3: Cross multiply
86,393.79x = 119,209.73 × 48,660.75 - Step 4: Simplify right side
86,393.79x = 5,800,834,625.79 - Step 5: Solve for x
x = 5,800,834,625.79/86,393.79 - Step 6: Final answer
x = 67,144.12
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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.