Home / 55,132.40-82,720.20-21,846.80

Finding the Fourth Proportional to 55,132.40, 82,720.20 and 21,846.80

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Solution

The fourth proportional to 55,132.40, 82,720.20 and 21,846.80 is: 32,778.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,132.40 : 82,720.20 = 21,846.80 : x
  2. Step 2: Convert to fraction form
    55,132.40/82,720.20 = 21,846.80/x
  3. Step 3: Cross multiply
    55,132.40x = 82,720.20 × 21,846.80
  4. Step 4: Simplify right side
    55,132.40x = 1,807,171,665.36
  5. Step 5: Solve for x
    x = 1,807,171,665.36/55,132.40
  6. Step 6: Final answer
    x = 32,778.76

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1.5x scale

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.