Home / 57,931.21-86,747.87-40,136.52

Finding the Fourth Proportional to 57,931.21, 86,747.87 and 40,136.52

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Solution

The fourth proportional to 57,931.21, 86,747.87 and 40,136.52 is: 60,101.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,931.21 : 86,747.87 = 40,136.52 : x
  2. Step 2: Convert to fraction form
    57,931.21/86,747.87 = 40,136.52/x
  3. Step 3: Cross multiply
    57,931.21x = 86,747.87 × 40,136.52
  4. Step 4: Simplify right side
    57,931.21x = 3,481,757,619.21
  5. Step 5: Solve for x
    x = 3,481,757,619.21/57,931.21
  6. Step 6: Final answer
    x = 60,101.59

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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.