Home / 43,170.92-64,739.34-20,977.73

Finding the Fourth Proportional to 43,170.92, 64,739.34 and 20,977.73

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Solution

The fourth proportional to 43,170.92, 64,739.34 and 20,977.73 is: 31,458.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,170.92 : 64,739.34 = 20,977.73 : x
  2. Step 2: Convert to fraction form
    43,170.92/64,739.34 = 20,977.73/x
  3. Step 3: Cross multiply
    43,170.92x = 64,739.34 × 20,977.73
  4. Step 4: Simplify right side
    43,170.92x = 1,358,084,394.90
  5. Step 5: Solve for x
    x = 1,358,084,394.90/43,170.92
  6. Step 6: Final answer
    x = 31,458.31

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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.