Home / 55,136.46-82,678.78-38,515.26

Finding the Fourth Proportional to 55,136.46, 82,678.78 and 38,515.26

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Solution

The fourth proportional to 55,136.46, 82,678.78 and 38,515.26 is: 57,754.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,136.46 : 82,678.78 = 38,515.26 : x
  2. Step 2: Convert to fraction form
    55,136.46/82,678.78 = 38,515.26/x
  3. Step 3: Cross multiply
    55,136.46x = 82,678.78 × 38,515.26
  4. Step 4: Simplify right side
    55,136.46x = 3,184,394,849.72
  5. Step 5: Solve for x
    x = 3,184,394,849.72/55,136.46
  6. Step 6: Final answer
    x = 57,754.79

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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.