Home / 45,739.38-68,538.21-31,726.65

Finding the Fourth Proportional to 45,739.38, 68,538.21 and 31,726.65

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Solution

The fourth proportional to 45,739.38, 68,538.21 and 31,726.65 is: 47,540.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,739.38 : 68,538.21 = 31,726.65 : x
  2. Step 2: Convert to fraction form
    45,739.38/68,538.21 = 31,726.65/x
  3. Step 3: Cross multiply
    45,739.38x = 68,538.21 × 31,726.65
  4. Step 4: Simplify right side
    45,739.38x = 2,174,487,800.30
  5. Step 5: Solve for x
    x = 2,174,487,800.30/45,739.38
  6. Step 6: Final answer
    x = 47,540.82

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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.