Home / 87,402.64-120,619.24-49,163.96

Finding the Fourth Proportional to 87,402.64, 120,619.24 and 49,163.96

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Solution

The fourth proportional to 87,402.64, 120,619.24 and 49,163.96 is: 67,848.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,402.64 : 120,619.24 = 49,163.96 : x
  2. Step 2: Convert to fraction form
    87,402.64/120,619.24 = 49,163.96/x
  3. Step 3: Cross multiply
    87,402.64x = 120,619.24 × 49,163.96
  4. Step 4: Simplify right side
    87,402.64x = 5,930,119,490.59
  5. Step 5: Solve for x
    x = 5,930,119,490.59/87,402.64
  6. Step 6: Final answer
    x = 67,848.29

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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.