Home / 50,808.12-76,212.20-21,209.82

Finding the Fourth Proportional to 50,808.12, 76,212.20 and 21,209.82

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Solution

The fourth proportional to 50,808.12, 76,212.20 and 21,209.82 is: 31,814.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,808.12 : 76,212.20 = 21,209.82 : x
  2. Step 2: Convert to fraction form
    50,808.12/76,212.20 = 21,209.82/x
  3. Step 3: Cross multiply
    50,808.12x = 76,212.20 × 21,209.82
  4. Step 4: Simplify right side
    50,808.12x = 1,616,446,937.75
  5. Step 5: Solve for x
    x = 1,616,446,937.75/50,808.12
  6. Step 6: Final answer
    x = 31,814.74

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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.