Home / 80,438.92-111,008.68-48,601.68

Finding the Fourth Proportional to 80,438.92, 111,008.68 and 48,601.68

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Solution

The fourth proportional to 80,438.92, 111,008.68 and 48,601.68 is: 67,072.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,438.92 : 111,008.68 = 48,601.68 : x
  2. Step 2: Convert to fraction form
    80,438.92/111,008.68 = 48,601.68/x
  3. Step 3: Cross multiply
    80,438.92x = 111,008.68 × 48,601.68
  4. Step 4: Simplify right side
    80,438.92x = 5,395,208,342.58
  5. Step 5: Solve for x
    x = 5,395,208,342.58/80,438.92
  6. Step 6: Final answer
    x = 67,072.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.