Home / 51,136.76-76,715.54-21,554.54

Finding the Fourth Proportional to 51,136.76, 76,715.54 and 21,554.54

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Solution

The fourth proportional to 51,136.76, 76,715.54 and 21,554.54 is: 32,336.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,136.76 : 76,715.54 = 21,554.54 : x
  2. Step 2: Convert to fraction form
    51,136.76/76,715.54 = 21,554.54/x
  3. Step 3: Cross multiply
    51,136.76x = 76,715.54 × 21,554.54
  4. Step 4: Simplify right side
    51,136.76x = 1,653,567,684.20
  5. Step 5: Solve for x
    x = 1,653,567,684.20/51,136.76
  6. Step 6: Final answer
    x = 32,336.19

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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.