Home / 66,235.38-99,372.24-19,488.12

Finding the Fourth Proportional to 66,235.38, 99,372.24 and 19,488.12

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Solution

The fourth proportional to 66,235.38, 99,372.24 and 19,488.12 is: 29,237.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,235.38 : 99,372.24 = 19,488.12 : x
  2. Step 2: Convert to fraction form
    66,235.38/99,372.24 = 19,488.12/x
  3. Step 3: Cross multiply
    66,235.38x = 99,372.24 × 19,488.12
  4. Step 4: Simplify right side
    66,235.38x = 1,936,578,137.79
  5. Step 5: Solve for x
    x = 1,936,578,137.79/66,235.38
  6. Step 6: Final answer
    x = 29,237.82

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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.