Home / 48,134.05-72,171-18,516.60

Finding the Fourth Proportional to 48,134.05, 72,171 and 18,516.60

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Solution

The fourth proportional to 48,134.05, 72,171 and 18,516.60 is: 27,763.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,134.05 : 72,171 = 18,516.60 : x
  2. Step 2: Convert to fraction form
    48,134.05/72,171 = 18,516.60/x
  3. Step 3: Cross multiply
    48,134.05x = 72,171 × 18,516.60
  4. Step 4: Simplify right side
    48,134.05x = 1,336,361,538.60
  5. Step 5: Solve for x
    x = 1,336,361,538.60/48,134.05
  6. Step 6: Final answer
    x = 27,763.33

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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.