Home / 49,784.40-74,676.60-45,982.80

Finding the Fourth Proportional to 49,784.40, 74,676.60 and 45,982.80

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Solution

The fourth proportional to 49,784.40, 74,676.60 and 45,982.80 is: 68,974.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,784.40 : 74,676.60 = 45,982.80 : x
  2. Step 2: Convert to fraction form
    49,784.40/74,676.60 = 45,982.80/x
  3. Step 3: Cross multiply
    49,784.40x = 74,676.60 × 45,982.80
  4. Step 4: Simplify right side
    49,784.40x = 3,433,839,162.48
  5. Step 5: Solve for x
    x = 3,433,839,162.48/49,784.40
  6. Step 6: Final answer
    x = 68,974.20

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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.