Home / 73,220.10-109,788.51-28,822.80

Finding the Fourth Proportional to 73,220.10, 109,788.51 and 28,822.80

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Solution

The fourth proportional to 73,220.10, 109,788.51 and 28,822.80 is: 43,217.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,220.10 : 109,788.51 = 28,822.80 : x
  2. Step 2: Convert to fraction form
    73,220.10/109,788.51 = 28,822.80/x
  3. Step 3: Cross multiply
    73,220.10x = 109,788.51 × 28,822.80
  4. Step 4: Simplify right side
    73,220.10x = 3,164,412,266.03
  5. Step 5: Solve for x
    x = 3,164,412,266.03/73,220.10
  6. Step 6: Final answer
    x = 43,217.81

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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.