Home / 55,067.12-82,571.40-21,785.84

Finding the Fourth Proportional to 55,067.12, 82,571.40 and 21,785.84

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Solution

The fourth proportional to 55,067.12, 82,571.40 and 21,785.84 is: 32,667.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,067.12 : 82,571.40 = 21,785.84 : x
  2. Step 2: Convert to fraction form
    55,067.12/82,571.40 = 21,785.84/x
  3. Step 3: Cross multiply
    55,067.12x = 82,571.40 × 21,785.84
  4. Step 4: Simplify right side
    55,067.12x = 1,798,887,308.98
  5. Step 5: Solve for x
    x = 1,798,887,308.98/55,067.12
  6. Step 6: Final answer
    x = 32,667.18

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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.