Home / 57,198.20-85,808.76-19,759.64

Finding the Fourth Proportional to 57,198.20, 85,808.76 and 19,759.64

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Solution

The fourth proportional to 57,198.20, 85,808.76 and 19,759.64 is: 29,643.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,198.20 : 85,808.76 = 19,759.64 : x
  2. Step 2: Convert to fraction form
    57,198.20/85,808.76 = 19,759.64/x
  3. Step 3: Cross multiply
    57,198.20x = 85,808.76 × 19,759.64
  4. Step 4: Simplify right side
    57,198.20x = 1,695,550,206.45
  5. Step 5: Solve for x
    x = 1,695,550,206.45/57,198.20
  6. Step 6: Final answer
    x = 29,643.42

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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.