Home / 55,330.20-82,995.30-13,777.20

Finding the Fourth Proportional to 55,330.20, 82,995.30 and 13,777.20

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Solution

The fourth proportional to 55,330.20, 82,995.30 and 13,777.20 is: 20,665.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,330.20 : 82,995.30 = 13,777.20 : x
  2. Step 2: Convert to fraction form
    55,330.20/82,995.30 = 13,777.20/x
  3. Step 3: Cross multiply
    55,330.20x = 82,995.30 × 13,777.20
  4. Step 4: Simplify right side
    55,330.20x = 1,143,442,847.16
  5. Step 5: Solve for x
    x = 1,143,442,847.16/55,330.20
  6. Step 6: Final answer
    x = 20,665.80

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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.