Home / 51,025.50-76,538.25-19,860.75

Finding the Fourth Proportional to 51,025.50, 76,538.25 and 19,860.75

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Solution

The fourth proportional to 51,025.50, 76,538.25 and 19,860.75 is: 29,791.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,025.50 : 76,538.25 = 19,860.75 : x
  2. Step 2: Convert to fraction form
    51,025.50/76,538.25 = 19,860.75/x
  3. Step 3: Cross multiply
    51,025.50x = 76,538.25 × 19,860.75
  4. Step 4: Simplify right side
    51,025.50x = 1,520,107,048.69
  5. Step 5: Solve for x
    x = 1,520,107,048.69/51,025.50
  6. Step 6: Final answer
    x = 29,791.13

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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.