Home / 57,289.96-85,914.43-19,839.98

Finding the Fourth Proportional to 57,289.96, 85,914.43 and 19,839.98

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Solution

The fourth proportional to 57,289.96, 85,914.43 and 19,839.98 is: 29,752.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,289.96 : 85,914.43 = 19,839.98 : x
  2. Step 2: Convert to fraction form
    57,289.96/85,914.43 = 19,839.98/x
  3. Step 3: Cross multiply
    57,289.96x = 85,914.43 × 19,839.98
  4. Step 4: Simplify right side
    57,289.96x = 1,704,540,572.91
  5. Step 5: Solve for x
    x = 1,704,540,572.91/57,289.96
  6. Step 6: Final answer
    x = 29,752.87

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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.