Home / 80,005.24-120,033.78-38,455.48

Finding the Fourth Proportional to 80,005.24, 120,033.78 and 38,455.48

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Solution

The fourth proportional to 80,005.24, 120,033.78 and 38,455.48 is: 57,695.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,005.24 : 120,033.78 = 38,455.48 : x
  2. Step 2: Convert to fraction form
    80,005.24/120,033.78 = 38,455.48/x
  3. Step 3: Cross multiply
    80,005.24x = 120,033.78 × 38,455.48
  4. Step 4: Simplify right side
    80,005.24x = 4,615,956,626.11
  5. Step 5: Solve for x
    x = 4,615,956,626.11/80,005.24
  6. Step 6: Final answer
    x = 57,695.68

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1.5x scale

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.