Home / 76,136.79-114,246.51-31,767.42

Finding the Fourth Proportional to 76,136.79, 114,246.51 and 31,767.42

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Solution

The fourth proportional to 76,136.79, 114,246.51 and 31,767.42 is: 47,668.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,136.79 : 114,246.51 = 31,767.42 : x
  2. Step 2: Convert to fraction form
    76,136.79/114,246.51 = 31,767.42/x
  3. Step 3: Cross multiply
    76,136.79x = 114,246.51 × 31,767.42
  4. Step 4: Simplify right side
    76,136.79x = 3,629,316,866.70
  5. Step 5: Solve for x
    x = 3,629,316,866.70/76,136.79
  6. Step 6: Final answer
    x = 47,668.37

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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.