Home / 52,027.12-78,021.78-18,286.30

Finding the Fourth Proportional to 52,027.12, 78,021.78 and 18,286.30

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Solution

The fourth proportional to 52,027.12, 78,021.78 and 18,286.30 is: 27,422.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,027.12 : 78,021.78 = 18,286.30 : x
  2. Step 2: Convert to fraction form
    52,027.12/78,021.78 = 18,286.30/x
  3. Step 3: Cross multiply
    52,027.12x = 78,021.78 × 18,286.30
  4. Step 4: Simplify right side
    52,027.12x = 1,426,729,675.61
  5. Step 5: Solve for x
    x = 1,426,729,675.61/52,027.12
  6. Step 6: Final answer
    x = 27,422.81

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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.