Home / 48,279.42-72,419.19-13,219.38

Finding the Fourth Proportional to 48,279.42, 72,419.19 and 13,219.38

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Solution

The fourth proportional to 48,279.42, 72,419.19 and 13,219.38 is: 19,829.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,279.42 : 72,419.19 = 13,219.38 : x
  2. Step 2: Convert to fraction form
    48,279.42/72,419.19 = 13,219.38/x
  3. Step 3: Cross multiply
    48,279.42x = 72,419.19 × 13,219.38
  4. Step 4: Simplify right side
    48,279.42x = 957,336,791.90
  5. Step 5: Solve for x
    x = 957,336,791.90/48,279.42
  6. Step 6: Final answer
    x = 19,829.09

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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.