Home / 82,283.11-123,424.66-19,953.61

Finding the Fourth Proportional to 82,283.11, 123,424.66 and 19,953.61

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Solution

The fourth proportional to 82,283.11, 123,424.66 and 19,953.61 is: 29,930.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,283.11 : 123,424.66 = 19,953.61 : x
  2. Step 2: Convert to fraction form
    82,283.11/123,424.66 = 19,953.61/x
  3. Step 3: Cross multiply
    82,283.11x = 123,424.66 × 19,953.61
  4. Step 4: Simplify right side
    82,283.11x = 2,462,767,530.02
  5. Step 5: Solve for x
    x = 2,462,767,530.02/82,283.11
  6. Step 6: Final answer
    x = 29,930.41

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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.