Home / 51,329.76-76,975.20-20,148

Finding the Fourth Proportional to 51,329.76, 76,975.20 and 20,148

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Solution

The fourth proportional to 51,329.76, 76,975.20 and 20,148 is: 30,214.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,329.76 : 76,975.20 = 20,148 : x
  2. Step 2: Convert to fraction form
    51,329.76/76,975.20 = 20,148/x
  3. Step 3: Cross multiply
    51,329.76x = 76,975.20 × 20,148
  4. Step 4: Simplify right side
    51,329.76x = 1,550,896,329.60
  5. Step 5: Solve for x
    x = 1,550,896,329.60/51,329.76
  6. Step 6: Final answer
    x = 30,214.37

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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.