Home / 72,726.26-109,077.03-20,123.44

Finding the Fourth Proportional to 72,726.26, 109,077.03 and 20,123.44

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Solution

The fourth proportional to 72,726.26, 109,077.03 and 20,123.44 is: 30,181.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,726.26 : 109,077.03 = 20,123.44 : x
  2. Step 2: Convert to fraction form
    72,726.26/109,077.03 = 20,123.44/x
  3. Step 3: Cross multiply
    72,726.26x = 109,077.03 × 20,123.44
  4. Step 4: Simplify right side
    72,726.26x = 2,195,004,795.89
  5. Step 5: Solve for x
    x = 2,195,004,795.89/72,726.26
  6. Step 6: Final answer
    x = 30,181.74

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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.