Home / 87,342.08-130,919.70-45,179.73

Finding the Fourth Proportional to 87,342.08, 130,919.70 and 45,179.73

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Solution

The fourth proportional to 87,342.08, 130,919.70 and 45,179.73 is: 67,721.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,342.08 : 130,919.70 = 45,179.73 : x
  2. Step 2: Convert to fraction form
    87,342.08/130,919.70 = 45,179.73/x
  3. Step 3: Cross multiply
    87,342.08x = 130,919.70 × 45,179.73
  4. Step 4: Simplify right side
    87,342.08x = 5,914,916,697.68
  5. Step 5: Solve for x
    x = 5,914,916,697.68/87,342.08
  6. Step 6: Final answer
    x = 67,721.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.