Home / 57,628.58-79,558.77-39,819.32

Finding the Fourth Proportional to 57,628.58, 79,558.77 and 39,819.32

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Solution

The fourth proportional to 57,628.58, 79,558.77 and 39,819.32 is: 54,972.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,628.58 : 79,558.77 = 39,819.32 : x
  2. Step 2: Convert to fraction form
    57,628.58/79,558.77 = 39,819.32/x
  3. Step 3: Cross multiply
    57,628.58x = 79,558.77 × 39,819.32
  4. Step 4: Simplify right side
    57,628.58x = 3,167,976,121.44
  5. Step 5: Solve for x
    x = 3,167,976,121.44/57,628.58
  6. Step 6: Final answer
    x = 54,972.31

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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.