Home / 45,325.08-67,964.25-20,343.71

Finding the Fourth Proportional to 45,325.08, 67,964.25 and 20,343.71

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Solution

The fourth proportional to 45,325.08, 67,964.25 and 20,343.71 is: 30,505.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,325.08 : 67,964.25 = 20,343.71 : x
  2. Step 2: Convert to fraction form
    45,325.08/67,964.25 = 20,343.71/x
  3. Step 3: Cross multiply
    45,325.08x = 67,964.25 × 20,343.71
  4. Step 4: Simplify right side
    45,325.08x = 1,382,645,238.57
  5. Step 5: Solve for x
    x = 1,382,645,238.57/45,325.08
  6. Step 6: Final answer
    x = 30,505.08

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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.