Home / 73,429.13-110,143.77-20,121.56

Finding the Fourth Proportional to 73,429.13, 110,143.77 and 20,121.56

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Solution

The fourth proportional to 73,429.13, 110,143.77 and 20,121.56 is: 30,182.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,429.13 : 110,143.77 = 20,121.56 : x
  2. Step 2: Convert to fraction form
    73,429.13/110,143.77 = 20,121.56/x
  3. Step 3: Cross multiply
    73,429.13x = 110,143.77 × 20,121.56
  4. Step 4: Simplify right side
    73,429.13x = 2,216,263,925.96
  5. Step 5: Solve for x
    x = 2,216,263,925.96/73,429.13
  6. Step 6: Final answer
    x = 30,182.36

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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.