Home / 45,442.62-68,129.91-30,609.90

Finding the Fourth Proportional to 45,442.62, 68,129.91 and 30,609.90

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Solution

The fourth proportional to 45,442.62, 68,129.91 and 30,609.90 is: 45,891.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,442.62 : 68,129.91 = 30,609.90 : x
  2. Step 2: Convert to fraction form
    45,442.62/68,129.91 = 30,609.90/x
  3. Step 3: Cross multiply
    45,442.62x = 68,129.91 × 30,609.90
  4. Step 4: Simplify right side
    45,442.62x = 2,085,449,732.11
  5. Step 5: Solve for x
    x = 2,085,449,732.11/45,442.62
  6. Step 6: Final answer
    x = 45,891.93

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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.