Home / 45,022-67,479.06-20,973.88

Finding the Fourth Proportional to 45,022, 67,479.06 and 20,973.88

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Solution

The fourth proportional to 45,022, 67,479.06 and 20,973.88 is: 31,435.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,022 : 67,479.06 = 20,973.88 : x
  2. Step 2: Convert to fraction form
    45,022/67,479.06 = 20,973.88/x
  3. Step 3: Cross multiply
    45,022x = 67,479.06 × 20,973.88
  4. Step 4: Simplify right side
    45,022x = 1,415,297,706.95
  5. Step 5: Solve for x
    x = 1,415,297,706.95/45,022
  6. Step 6: Final answer
    x = 31,435.69

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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.