Home / 82,906.40-124,273.20-45,408.80

Finding the Fourth Proportional to 82,906.40, 124,273.20 and 45,408.80

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Solution

The fourth proportional to 82,906.40, 124,273.20 and 45,408.80 is: 68,065.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,906.40 : 124,273.20 = 45,408.80 : x
  2. Step 2: Convert to fraction form
    82,906.40/124,273.20 = 45,408.80/x
  3. Step 3: Cross multiply
    82,906.40x = 124,273.20 × 45,408.80
  4. Step 4: Simplify right side
    82,906.40x = 5,643,096,884.16
  5. Step 5: Solve for x
    x = 5,643,096,884.16/82,906.40
  6. Step 6: Final answer
    x = 68,065.88

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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.