Home / 48,518.73-72,778.07-13,458.38

Finding the Fourth Proportional to 48,518.73, 72,778.07 and 13,458.38

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Solution

The fourth proportional to 48,518.73, 72,778.07 and 13,458.38 is: 20,187.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,518.73 : 72,778.07 = 13,458.38 : x
  2. Step 2: Convert to fraction form
    48,518.73/72,778.07 = 13,458.38/x
  3. Step 3: Cross multiply
    48,518.73x = 72,778.07 × 13,458.38
  4. Step 4: Simplify right side
    48,518.73x = 979,474,591.48
  5. Step 5: Solve for x
    x = 979,474,591.48/48,518.73
  6. Step 6: Final answer
    x = 20,187.56

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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.