Home / 49,129.12-67,800-27,911.98

Finding the Fourth Proportional to 49,129.12, 67,800 and 27,911.98

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Solution

The fourth proportional to 49,129.12, 67,800 and 27,911.98 is: 38,519.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,129.12 : 67,800 = 27,911.98 : x
  2. Step 2: Convert to fraction form
    49,129.12/67,800 = 27,911.98/x
  3. Step 3: Cross multiply
    49,129.12x = 67,800 × 27,911.98
  4. Step 4: Simplify right side
    49,129.12x = 1,892,432,244
  5. Step 5: Solve for x
    x = 1,892,432,244/49,129.12
  6. Step 6: Final answer
    x = 38,519.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.