Home / 67,849.30-101,786.10-28,410.40

Finding the Fourth Proportional to 67,849.30, 101,786.10 and 28,410.40

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Solution

The fourth proportional to 67,849.30, 101,786.10 and 28,410.40 is: 42,620.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,849.30 : 101,786.10 = 28,410.40 : x
  2. Step 2: Convert to fraction form
    67,849.30/101,786.10 = 28,410.40/x
  3. Step 3: Cross multiply
    67,849.30x = 101,786.10 × 28,410.40
  4. Step 4: Simplify right side
    67,849.30x = 2,891,783,815.44
  5. Step 5: Solve for x
    x = 2,891,783,815.44/67,849.30
  6. Step 6: Final answer
    x = 42,620.69

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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.