Home / 52,919.69-79,358.78-21,323.85

Finding the Fourth Proportional to 52,919.69, 79,358.78 and 21,323.85

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Solution

The fourth proportional to 52,919.69, 79,358.78 and 21,323.85 is: 31,977.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,919.69 : 79,358.78 = 21,323.85 : x
  2. Step 2: Convert to fraction form
    52,919.69/79,358.78 = 21,323.85/x
  3. Step 3: Cross multiply
    52,919.69x = 79,358.78 × 21,323.85
  4. Step 4: Simplify right side
    52,919.69x = 1,692,234,720.90
  5. Step 5: Solve for x
    x = 1,692,234,720.90/52,919.69
  6. Step 6: Final answer
    x = 31,977.41

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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.