Home / 45,166.60-67,757.10-18,857.80

Finding the Fourth Proportional to 45,166.60, 67,757.10 and 18,857.80

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Solution

The fourth proportional to 45,166.60, 67,757.10 and 18,857.80 is: 28,289.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,166.60 : 67,757.10 = 18,857.80 : x
  2. Step 2: Convert to fraction form
    45,166.60/67,757.10 = 18,857.80/x
  3. Step 3: Cross multiply
    45,166.60x = 67,757.10 × 18,857.80
  4. Step 4: Simplify right side
    45,166.60x = 1,277,749,840.38
  5. Step 5: Solve for x
    x = 1,277,749,840.38/45,166.60
  6. Step 6: Final answer
    x = 28,289.71

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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.