Home / 45,029.56-67,507.90-18,754.04

Finding the Fourth Proportional to 45,029.56, 67,507.90 and 18,754.04

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Solution

The fourth proportional to 45,029.56, 67,507.90 and 18,754.04 is: 28,115.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,029.56 : 67,507.90 = 18,754.04 : x
  2. Step 2: Convert to fraction form
    45,029.56/67,507.90 = 18,754.04/x
  3. Step 3: Cross multiply
    45,029.56x = 67,507.90 × 18,754.04
  4. Step 4: Simplify right side
    45,029.56x = 1,266,045,856.92
  5. Step 5: Solve for x
    x = 1,266,045,856.92/45,029.56
  6. Step 6: Final answer
    x = 28,115.88

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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.