Home / 45,158.85-67,738.55-18,519.44

Finding the Fourth Proportional to 45,158.85, 67,738.55 and 18,519.44

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Solution

The fourth proportional to 45,158.85, 67,738.55 and 18,519.44 is: 27,779.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,158.85 : 67,738.55 = 18,519.44 : x
  2. Step 2: Convert to fraction form
    45,158.85/67,738.55 = 18,519.44/x
  3. Step 3: Cross multiply
    45,158.85x = 67,738.55 × 18,519.44
  4. Step 4: Simplify right side
    45,158.85x = 1,254,479,581.12
  5. Step 5: Solve for x
    x = 1,254,479,581.12/45,158.85
  6. Step 6: Final answer
    x = 27,779.26

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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.