Home / 53,289.76-79,920.05-20,007.26

Finding the Fourth Proportional to 53,289.76, 79,920.05 and 20,007.26

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Solution

The fourth proportional to 53,289.76, 79,920.05 and 20,007.26 is: 30,005.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,289.76 : 79,920.05 = 20,007.26 : x
  2. Step 2: Convert to fraction form
    53,289.76/79,920.05 = 20,007.26/x
  3. Step 3: Cross multiply
    53,289.76x = 79,920.05 × 20,007.26
  4. Step 4: Simplify right side
    53,289.76x = 1,598,981,219.56
  5. Step 5: Solve for x
    x = 1,598,981,219.56/53,289.76
  6. Step 6: Final answer
    x = 30,005.41

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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.