Home / 66,172.38-99,258.58-19,425.26

Finding the Fourth Proportional to 66,172.38, 99,258.58 and 19,425.26

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Solution

The fourth proportional to 66,172.38, 99,258.58 and 19,425.26 is: 29,137.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,172.38 : 99,258.58 = 19,425.26 : x
  2. Step 2: Convert to fraction form
    66,172.38/99,258.58 = 19,425.26/x
  3. Step 3: Cross multiply
    66,172.38x = 99,258.58 × 19,425.26
  4. Step 4: Simplify right side
    66,172.38x = 1,928,123,723.73
  5. Step 5: Solve for x
    x = 1,928,123,723.73/66,172.38
  6. Step 6: Final answer
    x = 29,137.89

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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.