Home / 49,983.40-75,003.90-18,821.80

Finding the Fourth Proportional to 49,983.40, 75,003.90 and 18,821.80

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Solution

The fourth proportional to 49,983.40, 75,003.90 and 18,821.80 is: 28,243.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,983.40 : 75,003.90 = 18,821.80 : x
  2. Step 2: Convert to fraction form
    49,983.40/75,003.90 = 18,821.80/x
  3. Step 3: Cross multiply
    49,983.40x = 75,003.90 × 18,821.80
  4. Step 4: Simplify right side
    49,983.40x = 1,411,708,405.02
  5. Step 5: Solve for x
    x = 1,411,708,405.02/49,983.40
  6. Step 6: Final answer
    x = 28,243.54

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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.