Home / 45,325.16-67,964.39-20,343.79

Finding the Fourth Proportional to 45,325.16, 67,964.39 and 20,343.79

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Solution

The fourth proportional to 45,325.16, 67,964.39 and 20,343.79 is: 30,505.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,325.16 : 67,964.39 = 20,343.79 : x
  2. Step 2: Convert to fraction form
    45,325.16/67,964.39 = 20,343.79/x
  3. Step 3: Cross multiply
    45,325.16x = 67,964.39 × 20,343.79
  4. Step 4: Simplify right side
    45,325.16x = 1,382,653,277.64
  5. Step 5: Solve for x
    x = 1,382,653,277.64/45,325.16
  6. Step 6: Final answer
    x = 30,505.20

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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.