Home / 49,972.56-68,962.20-28,751.40

Finding the Fourth Proportional to 49,972.56, 68,962.20 and 28,751.40

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Solution

The fourth proportional to 49,972.56, 68,962.20 and 28,751.40 is: 39,676.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,972.56 : 68,962.20 = 28,751.40 : x
  2. Step 2: Convert to fraction form
    49,972.56/68,962.20 = 28,751.40/x
  3. Step 3: Cross multiply
    49,972.56x = 68,962.20 × 28,751.40
  4. Step 4: Simplify right side
    49,972.56x = 1,982,759,797.08
  5. Step 5: Solve for x
    x = 1,982,759,797.08/49,972.56
  6. Step 6: Final answer
    x = 39,676.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.