Home / 45,708.44-68,585.73-20,732.57

Finding the Fourth Proportional to 45,708.44, 68,585.73 and 20,732.57

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Solution

The fourth proportional to 45,708.44, 68,585.73 and 20,732.57 is: 31,109.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,708.44 : 68,585.73 = 20,732.57 : x
  2. Step 2: Convert to fraction form
    45,708.44/68,585.73 = 20,732.57/x
  3. Step 3: Cross multiply
    45,708.44x = 68,585.73 × 20,732.57
  4. Step 4: Simplify right side
    45,708.44x = 1,421,958,105.30
  5. Step 5: Solve for x
    x = 1,421,958,105.30/45,708.44
  6. Step 6: Final answer
    x = 31,109.32

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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.