Home / 57,209.69-85,815.35-17,764.31

Finding the Fourth Proportional to 57,209.69, 85,815.35 and 17,764.31

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Solution

The fourth proportional to 57,209.69, 85,815.35 and 17,764.31 is: 26,646.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,209.69 : 85,815.35 = 17,764.31 : x
  2. Step 2: Convert to fraction form
    57,209.69/85,815.35 = 17,764.31/x
  3. Step 3: Cross multiply
    57,209.69x = 85,815.35 × 17,764.31
  4. Step 4: Simplify right side
    57,209.69x = 1,524,450,672.49
  5. Step 5: Solve for x
    x = 1,524,450,672.49/57,209.69
  6. Step 6: Final answer
    x = 26,646.72

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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.