Home / 45,251.20-67,913.56-18,974.40

Finding the Fourth Proportional to 45,251.20, 67,913.56 and 18,974.40

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Solution

The fourth proportional to 45,251.20, 67,913.56 and 18,974.40 is: 28,477.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,251.20 : 67,913.56 = 18,974.40 : x
  2. Step 2: Convert to fraction form
    45,251.20/67,913.56 = 18,974.40/x
  3. Step 3: Cross multiply
    45,251.20x = 67,913.56 × 18,974.40
  4. Step 4: Simplify right side
    45,251.20x = 1,288,619,052.86
  5. Step 5: Solve for x
    x = 1,288,619,052.86/45,251.20
  6. Step 6: Final answer
    x = 28,477.01

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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.