Home / 87,667.07-120,974.48-49,427.98

Finding the Fourth Proportional to 87,667.07, 120,974.48 and 49,427.98

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Solution

The fourth proportional to 87,667.07, 120,974.48 and 49,427.98 is: 68,207.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,667.07 : 120,974.48 = 49,427.98 : x
  2. Step 2: Convert to fraction form
    87,667.07/120,974.48 = 49,427.98/x
  3. Step 3: Cross multiply
    87,667.07x = 120,974.48 × 49,427.98
  4. Step 4: Simplify right side
    87,667.07x = 5,979,524,177.95
  5. Step 5: Solve for x
    x = 5,979,524,177.95/87,667.07
  6. Step 6: Final answer
    x = 68,207.19

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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.