Home / 51,109.20-76,667.40-28,933.20

Finding the Fourth Proportional to 51,109.20, 76,667.40 and 28,933.20

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Solution

The fourth proportional to 51,109.20, 76,667.40 and 28,933.20 is: 43,401.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,109.20 : 76,667.40 = 28,933.20 : x
  2. Step 2: Convert to fraction form
    51,109.20/76,667.40 = 28,933.20/x
  3. Step 3: Cross multiply
    51,109.20x = 76,667.40 × 28,933.20
  4. Step 4: Simplify right side
    51,109.20x = 2,218,233,217.68
  5. Step 5: Solve for x
    x = 2,218,233,217.68/51,109.20
  6. Step 6: Final answer
    x = 43,401.84

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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.