Home / 45,243.21-67,887.45-20,301.09

Finding the Fourth Proportional to 45,243.21, 67,887.45 and 20,301.09

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Solution

The fourth proportional to 45,243.21, 67,887.45 and 20,301.09 is: 30,461.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,243.21 : 67,887.45 = 20,301.09 : x
  2. Step 2: Convert to fraction form
    45,243.21/67,887.45 = 20,301.09/x
  3. Step 3: Cross multiply
    45,243.21x = 67,887.45 × 20,301.09
  4. Step 4: Simplify right side
    45,243.21x = 1,378,189,232.32
  5. Step 5: Solve for x
    x = 1,378,189,232.32/45,243.21
  6. Step 6: Final answer
    x = 30,461.79

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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.