Home / 74,279.54-102,528.92-50,115.42

Finding the Fourth Proportional to 74,279.54, 102,528.92 and 50,115.42

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Solution

The fourth proportional to 74,279.54, 102,528.92 and 50,115.42 is: 69,174.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,279.54 : 102,528.92 = 50,115.42 : x
  2. Step 2: Convert to fraction form
    74,279.54/102,528.92 = 50,115.42/x
  3. Step 3: Cross multiply
    74,279.54x = 102,528.92 × 50,115.42
  4. Step 4: Simplify right side
    74,279.54x = 5,138,279,887.95
  5. Step 5: Solve for x
    x = 5,138,279,887.95/74,279.54
  6. Step 6: Final answer
    x = 69,174.90

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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.