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Finding the Fourth Proportional to 45,868.69, 68,809.41 and 16,279.50

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Solution

The fourth proportional to 45,868.69, 68,809.41 and 16,279.50 is: 24,421.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,868.69 : 68,809.41 = 16,279.50 : x
  2. Step 2: Convert to fraction form
    45,868.69/68,809.41 = 16,279.50/x
  3. Step 3: Cross multiply
    45,868.69x = 68,809.41 × 16,279.50
  4. Step 4: Simplify right side
    45,868.69x = 1,120,182,790.10
  5. Step 5: Solve for x
    x = 1,120,182,790.10/45,868.69
  6. Step 6: Final answer
    x = 24,421.51

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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.