Home / 73,976.92-111,009.10-38,919.32

Finding the Fourth Proportional to 73,976.92, 111,009.10 and 38,919.32

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Solution

The fourth proportional to 73,976.92, 111,009.10 and 38,919.32 is: 58,401.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,976.92 : 111,009.10 = 38,919.32 : x
  2. Step 2: Convert to fraction form
    73,976.92/111,009.10 = 38,919.32/x
  3. Step 3: Cross multiply
    73,976.92x = 111,009.10 × 38,919.32
  4. Step 4: Simplify right side
    73,976.92x = 4,320,398,685.81
  5. Step 5: Solve for x
    x = 4,320,398,685.81/73,976.92
  6. Step 6: Final answer
    x = 58,401.98

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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.