Home / 82,284.10-123,426.15-19,954.60

Finding the Fourth Proportional to 82,284.10, 123,426.15 and 19,954.60

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Solution

The fourth proportional to 82,284.10, 123,426.15 and 19,954.60 is: 29,931.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,284.10 : 123,426.15 = 19,954.60 : x
  2. Step 2: Convert to fraction form
    82,284.10/123,426.15 = 19,954.60/x
  3. Step 3: Cross multiply
    82,284.10x = 123,426.15 × 19,954.60
  4. Step 4: Simplify right side
    82,284.10x = 2,462,919,452.79
  5. Step 5: Solve for x
    x = 2,462,919,452.79/82,284.10
  6. Step 6: Final answer
    x = 29,931.90

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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.