Home / 81,980.30-123,028.05-35,266.70

Finding the Fourth Proportional to 81,980.30, 123,028.05 and 35,266.70

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Solution

The fourth proportional to 81,980.30, 123,028.05 and 35,266.70 is: 52,924.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,980.30 : 123,028.05 = 35,266.70 : x
  2. Step 2: Convert to fraction form
    81,980.30/123,028.05 = 35,266.70/x
  3. Step 3: Cross multiply
    81,980.30x = 123,028.05 × 35,266.70
  4. Step 4: Simplify right side
    81,980.30x = 4,338,793,330.94
  5. Step 5: Solve for x
    x = 4,338,793,330.94/81,980.30
  6. Step 6: Final answer
    x = 52,924.83

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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.