Home / 45,168.28-67,752.42-18,858.70

Finding the Fourth Proportional to 45,168.28, 67,752.42 and 18,858.70

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Solution

The fourth proportional to 45,168.28, 67,752.42 and 18,858.70 is: 28,288.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,168.28 : 67,752.42 = 18,858.70 : x
  2. Step 2: Convert to fraction form
    45,168.28/67,752.42 = 18,858.70/x
  3. Step 3: Cross multiply
    45,168.28x = 67,752.42 × 18,858.70
  4. Step 4: Simplify right side
    45,168.28x = 1,277,722,563.05
  5. Step 5: Solve for x
    x = 1,277,722,563.05/45,168.28
  6. Step 6: Final answer
    x = 28,288.05

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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.