Home / 74,212.20-111,318.30-50,711.40

Finding the Fourth Proportional to 74,212.20, 111,318.30 and 50,711.40

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Solution

The fourth proportional to 74,212.20, 111,318.30 and 50,711.40 is: 76,067.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,212.20 : 111,318.30 = 50,711.40 : x
  2. Step 2: Convert to fraction form
    74,212.20/111,318.30 = 50,711.40/x
  3. Step 3: Cross multiply
    74,212.20x = 111,318.30 × 50,711.40
  4. Step 4: Simplify right side
    74,212.20x = 5,645,106,838.62
  5. Step 5: Solve for x
    x = 5,645,106,838.62/74,212.20
  6. Step 6: Final answer
    x = 76,067.10

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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.