Home / 52,114.20-78,171.30-28,786.20

Finding the Fourth Proportional to 52,114.20, 78,171.30 and 28,786.20

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Solution

The fourth proportional to 52,114.20, 78,171.30 and 28,786.20 is: 43,179.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,114.20 : 78,171.30 = 28,786.20 : x
  2. Step 2: Convert to fraction form
    52,114.20/78,171.30 = 28,786.20/x
  3. Step 3: Cross multiply
    52,114.20x = 78,171.30 × 28,786.20
  4. Step 4: Simplify right side
    52,114.20x = 2,250,254,676.06
  5. Step 5: Solve for x
    x = 2,250,254,676.06/52,114.20
  6. Step 6: Final answer
    x = 43,179.30

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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.