Home / 58,112.72-87,163.96-18,659.28

Finding the Fourth Proportional to 58,112.72, 87,163.96 and 18,659.28

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Solution

The fourth proportional to 58,112.72, 87,163.96 and 18,659.28 is: 27,987.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,112.72 : 87,163.96 = 18,659.28 : x
  2. Step 2: Convert to fraction form
    58,112.72/87,163.96 = 18,659.28/x
  3. Step 3: Cross multiply
    58,112.72x = 87,163.96 × 18,659.28
  4. Step 4: Simplify right side
    58,112.72x = 1,626,416,735.55
  5. Step 5: Solve for x
    x = 1,626,416,735.55/58,112.72
  6. Step 6: Final answer
    x = 27,987.28

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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.