Home / 45,323.78-67,962.33-20,342.42

Finding the Fourth Proportional to 45,323.78, 67,962.33 and 20,342.42

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Solution

The fourth proportional to 45,323.78, 67,962.33 and 20,342.42 is: 30,503.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,323.78 : 67,962.33 = 20,342.42 : x
  2. Step 2: Convert to fraction form
    45,323.78/67,962.33 = 20,342.42/x
  3. Step 3: Cross multiply
    45,323.78x = 67,962.33 × 20,342.42
  4. Step 4: Simplify right side
    45,323.78x = 1,382,517,921.23
  5. Step 5: Solve for x
    x = 1,382,517,921.23/45,323.78
  6. Step 6: Final answer
    x = 30,503.15

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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.