Home / 53,786.10-80,693.55-47,982.90

Finding the Fourth Proportional to 53,786.10, 80,693.55 and 47,982.90

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Solution

The fourth proportional to 53,786.10, 80,693.55 and 47,982.90 is: 71,987.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,786.10 : 80,693.55 = 47,982.90 : x
  2. Step 2: Convert to fraction form
    53,786.10/80,693.55 = 47,982.90/x
  3. Step 3: Cross multiply
    53,786.10x = 80,693.55 × 47,982.90
  4. Step 4: Simplify right side
    53,786.10x = 3,871,910,540.30
  5. Step 5: Solve for x
    x = 3,871,910,540.30/53,786.10
  6. Step 6: Final answer
    x = 71,987.20

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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.