Home / 45,101.57-67,658.84-13,939.25

Finding the Fourth Proportional to 45,101.57, 67,658.84 and 13,939.25

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Solution

The fourth proportional to 45,101.57, 67,658.84 and 13,939.25 is: 20,910.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,101.57 : 67,658.84 = 13,939.25 : x
  2. Step 2: Convert to fraction form
    45,101.57/67,658.84 = 13,939.25/x
  3. Step 3: Cross multiply
    45,101.57x = 67,658.84 × 13,939.25
  4. Step 4: Simplify right side
    45,101.57x = 943,113,485.47
  5. Step 5: Solve for x
    x = 943,113,485.47/45,101.57
  6. Step 6: Final answer
    x = 20,910.88

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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.