Home / 45,137.53-67,712.60-18,836.25

Finding the Fourth Proportional to 45,137.53, 67,712.60 and 18,836.25

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Solution

The fourth proportional to 45,137.53, 67,712.60 and 18,836.25 is: 28,257.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,137.53 : 67,712.60 = 18,836.25 : x
  2. Step 2: Convert to fraction form
    45,137.53/67,712.60 = 18,836.25/x
  3. Step 3: Cross multiply
    45,137.53x = 67,712.60 × 18,836.25
  4. Step 4: Simplify right side
    45,137.53x = 1,275,451,029.01
  5. Step 5: Solve for x
    x = 1,275,451,029.01/45,137.53
  6. Step 6: Final answer
    x = 28,257.00

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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.