Home / 45,189.66-67,735.47-20,195.28

Finding the Fourth Proportional to 45,189.66, 67,735.47 and 20,195.28

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Solution

The fourth proportional to 45,189.66, 67,735.47 and 20,195.28 is: 30,271.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,189.66 : 67,735.47 = 20,195.28 : x
  2. Step 2: Convert to fraction form
    45,189.66/67,735.47 = 20,195.28/x
  3. Step 3: Cross multiply
    45,189.66x = 67,735.47 × 20,195.28
  4. Step 4: Simplify right side
    45,189.66x = 1,367,936,782.58
  5. Step 5: Solve for x
    x = 1,367,936,782.58/45,189.66
  6. Step 6: Final answer
    x = 30,271.01

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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.