Home / 57,723.21-86,589.77-20,280.06

Finding the Fourth Proportional to 57,723.21, 86,589.77 and 20,280.06

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Solution

The fourth proportional to 57,723.21, 86,589.77 and 20,280.06 is: 30,421.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,723.21 : 86,589.77 = 20,280.06 : x
  2. Step 2: Convert to fraction form
    57,723.21/86,589.77 = 20,280.06/x
  3. Step 3: Cross multiply
    57,723.21x = 86,589.77 × 20,280.06
  4. Step 4: Simplify right side
    57,723.21x = 1,756,045,629.59
  5. Step 5: Solve for x
    x = 1,756,045,629.59/57,723.21
  6. Step 6: Final answer
    x = 30,421.83

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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.