Home / 50,687.12-76,029.12-21,104.21

Finding the Fourth Proportional to 50,687.12, 76,029.12 and 21,104.21

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Solution

The fourth proportional to 50,687.12, 76,029.12 and 21,104.21 is: 31,655.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,687.12 : 76,029.12 = 21,104.21 : x
  2. Step 2: Convert to fraction form
    50,687.12/76,029.12 = 21,104.21/x
  3. Step 3: Cross multiply
    50,687.12x = 76,029.12 × 21,104.21
  4. Step 4: Simplify right side
    50,687.12x = 1,604,534,134.45
  5. Step 5: Solve for x
    x = 1,604,534,134.45/50,687.12
  6. Step 6: Final answer
    x = 31,655.66

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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.