Home / 79,943.92-119,928.52-30,027.80

Finding the Fourth Proportional to 79,943.92, 119,928.52 and 30,027.80

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Solution

The fourth proportional to 79,943.92, 119,928.52 and 30,027.80 is: 45,046.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,943.92 : 119,928.52 = 30,027.80 : x
  2. Step 2: Convert to fraction form
    79,943.92/119,928.52 = 30,027.80/x
  3. Step 3: Cross multiply
    79,943.92x = 119,928.52 × 30,027.80
  4. Step 4: Simplify right side
    79,943.92x = 3,601,189,612.86
  5. Step 5: Solve for x
    x = 3,601,189,612.86/79,943.92
  6. Step 6: Final answer
    x = 45,046.45

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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.