Home / 98,379.36-135,763.20-53,667.36

Finding the Fourth Proportional to 98,379.36, 135,763.20 and 53,667.36

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Solution

The fourth proportional to 98,379.36, 135,763.20 and 53,667.36 is: 74,060.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,379.36 : 135,763.20 = 53,667.36 : x
  2. Step 2: Convert to fraction form
    98,379.36/135,763.20 = 53,667.36/x
  3. Step 3: Cross multiply
    98,379.36x = 135,763.20 × 53,667.36
  4. Step 4: Simplify right side
    98,379.36x = 7,286,052,529.15
  5. Step 5: Solve for x
    x = 7,286,052,529.15/98,379.36
  6. Step 6: Final answer
    x = 74,060.78

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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.