Home / 45,453.91-62,708.70-28,451.20

Finding the Fourth Proportional to 45,453.91, 62,708.70 and 28,451.20

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Solution

The fourth proportional to 45,453.91, 62,708.70 and 28,451.20 is: 39,251.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,453.91 : 62,708.70 = 28,451.20 : x
  2. Step 2: Convert to fraction form
    45,453.91/62,708.70 = 28,451.20/x
  3. Step 3: Cross multiply
    45,453.91x = 62,708.70 × 28,451.20
  4. Step 4: Simplify right side
    45,453.91x = 1,784,137,765.44
  5. Step 5: Solve for x
    x = 1,784,137,765.44/45,453.91
  6. Step 6: Final answer
    x = 39,251.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.