Home / 55,698.20-76,863.90-30,204.70

Finding the Fourth Proportional to 55,698.20, 76,863.90 and 30,204.70

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Solution

The fourth proportional to 55,698.20, 76,863.90 and 30,204.70 is: 41,682.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,698.20 : 76,863.90 = 30,204.70 : x
  2. Step 2: Convert to fraction form
    55,698.20/76,863.90 = 30,204.70/x
  3. Step 3: Cross multiply
    55,698.20x = 76,863.90 × 30,204.70
  4. Step 4: Simplify right side
    55,698.20x = 2,321,650,961.44
  5. Step 5: Solve for x
    x = 2,321,650,961.44/55,698.20
  6. Step 6: Final answer
    x = 41,682.69

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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.