Home / 45,169.28-67,753.92-18,859.70

Finding the Fourth Proportional to 45,169.28, 67,753.92 and 18,859.70

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Solution

The fourth proportional to 45,169.28, 67,753.92 and 18,859.70 is: 28,289.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,169.28 : 67,753.92 = 18,859.70 : x
  2. Step 2: Convert to fraction form
    45,169.28/67,753.92 = 18,859.70/x
  3. Step 3: Cross multiply
    45,169.28x = 67,753.92 × 18,859.70
  4. Step 4: Simplify right side
    45,169.28x = 1,277,818,605.02
  5. Step 5: Solve for x
    x = 1,277,818,605.02/45,169.28
  6. Step 6: Final answer
    x = 28,289.55

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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.