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Finding the Fourth Proportional to 100,005.29, 150,013.41 and 29,890.07

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Solution

The fourth proportional to 100,005.29, 150,013.41 and 29,890.07 is: 44,836.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,005.29 : 150,013.41 = 29,890.07 : x
  2. Step 2: Convert to fraction form
    100,005.29/150,013.41 = 29,890.07/x
  3. Step 3: Cross multiply
    100,005.29x = 150,013.41 × 29,890.07
  4. Step 4: Simplify right side
    100,005.29x = 4,483,910,575.77
  5. Step 5: Solve for x
    x = 4,483,910,575.77/100,005.29
  6. Step 6: Final answer
    x = 44,836.74

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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.