Home / 57,422.85-79,246.19-31,931.80

Finding the Fourth Proportional to 57,422.85, 79,246.19 and 31,931.80

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Solution

The fourth proportional to 57,422.85, 79,246.19 and 31,931.80 is: 44,067.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,422.85 : 79,246.19 = 31,931.80 : x
  2. Step 2: Convert to fraction form
    57,422.85/79,246.19 = 31,931.80/x
  3. Step 3: Cross multiply
    57,422.85x = 79,246.19 × 31,931.80
  4. Step 4: Simplify right side
    57,422.85x = 2,530,473,489.84
  5. Step 5: Solve for x
    x = 2,530,473,489.84/57,422.85
  6. Step 6: Final answer
    x = 44,067.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.