Home / 86,958.22-120,005.31-48,719.38

Finding the Fourth Proportional to 86,958.22, 120,005.31 and 48,719.38

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Solution

The fourth proportional to 86,958.22, 120,005.31 and 48,719.38 is: 67,234.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,958.22 : 120,005.31 = 48,719.38 : x
  2. Step 2: Convert to fraction form
    86,958.22/120,005.31 = 48,719.38/x
  3. Step 3: Cross multiply
    86,958.22x = 120,005.31 × 48,719.38
  4. Step 4: Simplify right side
    86,958.22x = 5,846,584,299.91
  5. Step 5: Solve for x
    x = 5,846,584,299.91/86,958.22
  6. Step 6: Final answer
    x = 67,234.41

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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.