Home / 55,346.20-82,922.10-45,431.80

Finding the Fourth Proportional to 55,346.20, 82,922.10 and 45,431.80

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Solution

The fourth proportional to 55,346.20, 82,922.10 and 45,431.80 is: 68,067.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,346.20 : 82,922.10 = 45,431.80 : x
  2. Step 2: Convert to fraction form
    55,346.20/82,922.10 = 45,431.80/x
  3. Step 3: Cross multiply
    55,346.20x = 82,922.10 × 45,431.80
  4. Step 4: Simplify right side
    55,346.20x = 3,767,300,262.78
  5. Step 5: Solve for x
    x = 3,767,300,262.78/55,346.20
  6. Step 6: Final answer
    x = 68,067.91

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1.5x scale

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.