Home / 45,251.24-67,899.45-20,309.12

Finding the Fourth Proportional to 45,251.24, 67,899.45 and 20,309.12

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Solution

The fourth proportional to 45,251.24, 67,899.45 and 20,309.12 is: 30,473.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,251.24 : 67,899.45 = 20,309.12 : x
  2. Step 2: Convert to fraction form
    45,251.24/67,899.45 = 20,309.12/x
  3. Step 3: Cross multiply
    45,251.24x = 67,899.45 × 20,309.12
  4. Step 4: Simplify right side
    45,251.24x = 1,378,978,077.98
  5. Step 5: Solve for x
    x = 1,378,978,077.98/45,251.24
  6. Step 6: Final answer
    x = 30,473.82

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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.