Home / 86,305.14-119,072.55-50,469.78

Finding the Fourth Proportional to 86,305.14, 119,072.55 and 50,469.78

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Solution

The fourth proportional to 86,305.14, 119,072.55 and 50,469.78 is: 69,631.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,305.14 : 119,072.55 = 50,469.78 : x
  2. Step 2: Convert to fraction form
    86,305.14/119,072.55 = 50,469.78/x
  3. Step 3: Cross multiply
    86,305.14x = 119,072.55 × 50,469.78
  4. Step 4: Simplify right side
    86,305.14x = 6,009,565,402.54
  5. Step 5: Solve for x
    x = 6,009,565,402.54/86,305.14
  6. Step 6: Final answer
    x = 69,631.60

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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.