Home / 49,380.72-68,143.68-28,166.80

Finding the Fourth Proportional to 49,380.72, 68,143.68 and 28,166.80

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Solution

The fourth proportional to 49,380.72, 68,143.68 and 28,166.80 is: 38,869.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,380.72 : 68,143.68 = 28,166.80 : x
  2. Step 2: Convert to fraction form
    49,380.72/68,143.68 = 28,166.80/x
  3. Step 3: Cross multiply
    49,380.72x = 68,143.68 × 28,166.80
  4. Step 4: Simplify right side
    49,380.72x = 1,919,389,405.82
  5. Step 5: Solve for x
    x = 1,919,389,405.82/49,380.72
  6. Step 6: Final answer
    x = 38,869.21

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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.