Home / 50,814.96-76,210.14-21,216.72

Finding the Fourth Proportional to 50,814.96, 76,210.14 and 21,216.72

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Solution

The fourth proportional to 50,814.96, 76,210.14 and 21,216.72 is: 31,819.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,814.96 : 76,210.14 = 21,216.72 : x
  2. Step 2: Convert to fraction form
    50,814.96/76,210.14 = 21,216.72/x
  3. Step 3: Cross multiply
    50,814.96x = 76,210.14 × 21,216.72
  4. Step 4: Simplify right side
    50,814.96x = 1,616,929,201.54
  5. Step 5: Solve for x
    x = 1,616,929,201.54/50,814.96
  6. Step 6: Final answer
    x = 31,819.94

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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.