Home / 50,814.41-76,209.36-21,216.20

Finding the Fourth Proportional to 50,814.41, 76,209.36 and 21,216.20

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Solution

The fourth proportional to 50,814.41, 76,209.36 and 21,216.20 is: 31,819.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,814.41 : 76,209.36 = 21,216.20 : x
  2. Step 2: Convert to fraction form
    50,814.41/76,209.36 = 21,216.20/x
  3. Step 3: Cross multiply
    50,814.41x = 76,209.36 × 21,216.20
  4. Step 4: Simplify right side
    50,814.41x = 1,616,872,745.70
  5. Step 5: Solve for x
    x = 1,616,872,745.70/50,814.41
  6. Step 6: Final answer
    x = 31,819.18

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1.5x scale

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.