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Finding the Fourth Proportional to 44,890.80, 67,271.40 and 19,910.40

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Solution

The fourth proportional to 44,890.80, 67,271.40 and 19,910.40 is: 29,836.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,890.80 : 67,271.40 = 19,910.40 : x
  2. Step 2: Convert to fraction form
    44,890.80/67,271.40 = 19,910.40/x
  3. Step 3: Cross multiply
    44,890.80x = 67,271.40 × 19,910.40
  4. Step 4: Simplify right side
    44,890.80x = 1,339,400,482.56
  5. Step 5: Solve for x
    x = 1,339,400,482.56/44,890.80
  6. Step 6: Final answer
    x = 29,836.86

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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.