Home / 82,451.28-113,729.76-55,228.80

Finding the Fourth Proportional to 82,451.28, 113,729.76 and 55,228.80

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Solution

The fourth proportional to 82,451.28, 113,729.76 and 55,228.80 is: 76,180.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,451.28 : 113,729.76 = 55,228.80 : x
  2. Step 2: Convert to fraction form
    82,451.28/113,729.76 = 55,228.80/x
  3. Step 3: Cross multiply
    82,451.28x = 113,729.76 × 55,228.80
  4. Step 4: Simplify right side
    82,451.28x = 6,281,158,169.09
  5. Step 5: Solve for x
    x = 6,281,158,169.09/82,451.28
  6. Step 6: Final answer
    x = 76,180.24

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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.