Home / 45,315.32-67,942.92-21,626.51

Finding the Fourth Proportional to 45,315.32, 67,942.92 and 21,626.51

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Solution

The fourth proportional to 45,315.32, 67,942.92 and 21,626.51 is: 32,425.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,315.32 : 67,942.92 = 21,626.51 : x
  2. Step 2: Convert to fraction form
    45,315.32/67,942.92 = 21,626.51/x
  3. Step 3: Cross multiply
    45,315.32x = 67,942.92 × 21,626.51
  4. Step 4: Simplify right side
    45,315.32x = 1,469,368,238.81
  5. Step 5: Solve for x
    x = 1,469,368,238.81/45,315.32
  6. Step 6: Final answer
    x = 32,425.42

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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.