Home / 57,279.97-79,039.95-31,785.49

Finding the Fourth Proportional to 57,279.97, 79,039.95 and 31,785.49

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Solution

The fourth proportional to 57,279.97, 79,039.95 and 31,785.49 is: 43,860.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,279.97 : 79,039.95 = 31,785.49 : x
  2. Step 2: Convert to fraction form
    57,279.97/79,039.95 = 31,785.49/x
  3. Step 3: Cross multiply
    57,279.97x = 79,039.95 × 31,785.49
  4. Step 4: Simplify right side
    57,279.97x = 2,512,323,540.33
  5. Step 5: Solve for x
    x = 2,512,323,540.33/57,279.97
  6. Step 6: Final answer
    x = 43,860.42

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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.