Home / 57,786.20-86,549.70-47,418.20

Finding the Fourth Proportional to 57,786.20, 86,549.70 and 47,418.20

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Solution

The fourth proportional to 57,786.20, 86,549.70 and 47,418.20 is: 71,020.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,786.20 : 86,549.70 = 47,418.20 : x
  2. Step 2: Convert to fraction form
    57,786.20/86,549.70 = 47,418.20/x
  3. Step 3: Cross multiply
    57,786.20x = 86,549.70 × 47,418.20
  4. Step 4: Simplify right side
    57,786.20x = 4,104,030,984.54
  5. Step 5: Solve for x
    x = 4,104,030,984.54/57,786.20
  6. Step 6: Final answer
    x = 71,020.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.